Best P365 X-Macro Upgrades 2026: Optics, Grips, Lights & Holsters Ranked header image
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May 20, 2026
Best P365 X-Macro Upgrades 2026: Optics, Grips, Lights & Holsters Ranked

X-Macro-specific aftermarket: full-size grip modules from Tyrant CNC and Wilson Combat, Shield RMSc optics on the factory cut (ROMEO-X, EPS Carry, 507K, Osight SE), True Precision threaded barrels for the 3.7-comp slide, TLR-7 Sub lights with 1913 keys, and holsters from Tier 1, Tenicor, PHLster, and Tulster.

Best P365 X-Macro Upgrades 2026: Optics, Grips, Lights & Holsters Ranked

The P365 X-Macro carries 17+1 in a frame that disappears under a cover garment, and the factory 3.7-comp slide already flattens muzzle rise more than any other production P365. The upgrade path is narrower than it looks: most P365 parts fit, but a handful of categories (grip modules, threaded barrels, light keys, holsters) have X-Macro-specific picks that don't cross over from the standard P365 or P365 XL. This guide covers what actually fits the 3.7-comp slide and the 17-round grip, what to skip, and what to buy first. For broader family context across the P365, P365 XL, and X-Macro, see our full P365 upgrades guide.

By AB|Last reviewed May 2026

X-Macro Upgrade Priority: What to Buy First

The X-Macro's factory build already includes the upgrades that bottleneck a standard P365: Shield RMSc optic cut, X-Series flat trigger (on the Comp variant), and an integrated comp slide. Spending order changes accordingly. Buy magazines first, then add a grip module if you want to push texture beyond factory, then optic, then light. Threaded barrels are a purpose-driven category, not a default upgrade.

  1. Spare 17-Round Magazines ($55 each, $275 for 5)Highest ROI on the gun. One in the chamber, two spares for carry rotation, two for training. Steel body, factory only.
  2. Optic ($150-$500)Factory Shield RMSc cut. ROMEO-X, EPS Carry, 507K, or Osight SE drop in with no plate. Use our pistol red dot guide for the full sort.
  3. Grip Module ($65-$329)Optional on the X-Macro. Factory frame is the best stock P365 grip; aftermarket wins on texture depth and beavertail geometry, not length.
  4. Weapon Light ($149-$175)TLR-7 Sub or TLR-7 HL-X on the 1913 rail key. The SIG-key variants cut holster options in half.
  5. Trigger ($79-$99)Standard X-Macro ships curved; the Comp ships flat. Cosmetic upgrade for the standard frame. Geometry change, not weight change.
  6. Threaded Barrel ($170-$179)Standard X-Macro only. Comp slide requires the True Precision slide conversion kit. Skip unless you're running a can.
SIG P365 X-Macro base platform

Base Platform

SIG P365 X-Macro

SIG Sauer / $799.00 base

Full-capacity P365 variant with 17+1 rounds in compact size

Upgrade Builder

Price Out Your SIG P365 X-Macro Upgrades

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Picks
OpticOptional

Micro red dots and reflex sights for faster target acquisition.

Skipped

No upgrade selected for this slot.

$0 to build
Frame / Grip ModuleOptional

Aftermarket grip modules and metal frames for improved ergonomics.

Skipped

No upgrade selected for this slot.

$0 to build
TriggerOptional

Upgraded triggers with improved pull weight and reset.

Skipped

No upgrade selected for this slot.

$0 to build
Weapon LightOptional

Compact and full-size weapon lights for target identification.

Skipped

No upgrade selected for this slot.

$0 to build

Best X-Macro Grip Modules

The X-Macro factory frame already runs the longest P365 grip with the deepest undercut SIG ships. Aftermarket modules win on texture depth, beavertail size, and material, not on length. If you carry the X-Macro for deep concealment, the polymer picks (Wilson, Tyrant) are the practical answer; the aluminum Icarus pays for itself on the range and at competition, not inside the waistband.

1

Wilson Combat WCP365 Grip Module

Best Value Grip Upgrade

$66.95
View at OpticsPlanet
Enhanced PolymerAggressive Texture
  • +Aggressive texturing improves control on the 3.7-comp slide
  • +Improved grip angle settles the comp's muzzle rise faster
  • +Drop-in install, retains 17-round X-Macro magazines
  • Polymer construction, not metal
  • Stippling is aggressive enough to grab cotton undershirts
  • Some kydex AIWB holsters cut just under the trigger guard need re-tuning
Material: Enhanced polymerTexture: Aggressive stipplingCapacity: 17 rounds
2

Tyrant CNC P365 XMacro Grip Module

Best Aftermarket Polymer

$80
View at OpticsPlanet
Carbon/Glass PolymerDeep Undercut
  • +Deeper trigger guard undercut than the factory X-Macro frame
  • +Enlarged beavertail prevents slide bite from the 3.7 slide
  • +Variable-depth texture locks in without shredding cover garments
  • Requires X-Macro 17rd magazines; no flush 12rd / 15rd option
  • Polymer, not aluminum
  • Popular colors run out of stock for months
Material: Carbon/glass-filled polymerFeature: Picatinny accessory railBeavertail: Enlarged vs factory
3

Icarus Precision ACE 365 Grip Module

Best Premium Aluminum

$299.99
View at OpticsPlanet
7075 AluminumPremium
  • +7075 aluminum adds 4+ oz under the 3.7-comp slide to flatten splits
  • +Premium machining and finish quality on the X-Macro variant
  • +Multiple anodized finishes
  • $329 is more than five Wilson Combat grips
  • Added weight cuts deep-concealment comfort
  • Long lead times during X-Macro variant restocks
Material: 7075 aluminumFinish: Multiple anodizedWeight: Adds 4+ oz

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Best X-Macro Optics (Shield RMSc Footprint)

The P365 X-Macro and X-Macro Comp slides ship with a factory Shield RMSc cut. Any RMSc-footprint optic drops in without a plate or modification. Question to answer first: open emitter or enclosed. Enclosed sealed-housing optics (ROMEO-X, EPS Carry, Osight SE) survive lint, sweat, and slide blowback that block the dot on open-emitter sights in IWB carry. The 507K X2 stays in the ranking because the K footprint and multi-reticle option remain the value play, but verify your slide cut accepts K-footprint optics before ordering.

1

SIG Sauer ROMEO-X Compact Enclosed

Best Factory SIG Match

$499.99
View at OpticsPlanet
Factory SIGEnclosed3/6/Circle
  • +Factory-matched to the X-Macro Shield RMSc cut, no plate or modification
  • +Three reticle SKUs: 3 MOA, 6 MOA, or 2+32 circle dot
  • +Side-loading CR1632 preserves zero on battery changes
  • $500 runs above Holosun EPS Carry ($389)
  • 1.23" wide housing prints harder under cover garments than Osight SE (0.98")
  • No solar failsafe
Reticle: 3 MOA, 6 MOA, or Circle DotBattery: CR1632 side-load, 20,000 hr MOTACWarranty: SIG Infinite Guarantee
2

Holosun EPS Carry

Best Overall Enclosed

$429.99
View at OpticsPlanet
Enclosed EmitterSolarShield RMSc
  • +Enclosed emitter survives lint, debris, and slide blowback that kill open-emitter dots
  • +Drops directly into the X-Macro Shield RMSc cut without an adapter
  • +Solar failsafe keeps the dot lit if the battery dies
  • Open-emitter Holosun 507K is $100 less for indoor carry
  • Smaller window than a full-size 507C class optic
  • Buttons can be pressed by a tight kydex shell
Reticle: 2 MOA or 6 MOAFootprint: Shield RMScWeight: 1.03 oz
3

Holosun 507K X2

Best Multi-Reticle Value

$295.99
View at OpticsPlanet
Multi-ReticleSolarK Footprint
  • +2 MOA dot + 32 MOA circle for fast acquisition on a carry gun
  • +Roughly $100 less than the EPS Carry while keeping K-footprint compatibility on X-Macro slides
  • +Solar failsafe and Shake Awake
  • Open emitter is vulnerable to lint and debris from IWB carry
  • K footprint may need an adapter plate or recoil-lug filing on standard RMSc cuts; verify slide cut before ordering
  • Smaller window than full-size optics
Reticle: 2 MOA / 32 MOA / BothFootprint: Holosun KWeight: 1.0 oz
4

Olight Osight SE Enclosed (Green)

Best Budget Enclosed

$150
View at OpticsPlanet
EnclosedGreen DotBest Value
  • +Roughly one-third the price of the EPS Carry with an enclosed emitter
  • +Green 6 MOA reticle is easier to pick up in daylight
  • +75,000-hour runtime crushes every other pick on this page
  • Olight has limited long-term track record in pistol optics
  • Single 6 MOA reticle, no multi-reticle option
  • IPX7 sealing is a step below premium competitors
Reticle: 6 MOA green dotBattery: CR1620 side-load, 75,000 hrWeight: 0.97 oz

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Best X-Macro Triggers

The X-Macro Comp already ships with the SIG X-Series flat trigger from the factory. The standard X-Macro ships with the curved trigger; both upgrade paths below are drop-in shoe swaps that change finger geometry but not pull weight. Neither is a performance unlock the way an aftermarket trigger is on a P320 or Glock.

1

SIG Sauer X-Series Flat Trigger P365

Best Factory Match

$43.99
View at OpticsPlanet
Factory SIGDrop-In
  • +Same flat-face geometry SIG ships on the X-Macro Comp and Spectre Comp from the factory
  • +Drop-in, no gunsmithing
  • +Maintains factory warranty
  • Pull weight barely changes from the OEM curved trigger
  • Not adjustable
  • Same internals as the OEM curved trigger; only the shoe changes
Type: Flat faceOrigin: SIG factory (X-Macro Comp)Install: Drop-in
2

Armory Craft Flat Trigger P365

Best Aftermarket Flat Face

$99
View at OpticsPlanet
AftermarketMultiple Finishes
  • +Improved geometry over the SIG factory flat trigger
  • +Multiple finishes including black, silver, gold, and red
  • +Lighter wall and crisper break than the X-Series shoe
  • $99 versus SIG factory $79 with only marginal pull-weight gain
  • Not adjustable like the Armory Craft P320 trigger
  • Some X-Macro Comp slides need the trigger bar deburred for a clean reset
Type: Flat faceFeature: Refined wall geometryFinish: Black, silver, gold, red

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Best X-Macro Threaded Barrels

A threaded X-Macro barrel is the gate to suppressed carry and aftermarket comps. The standard X-Macro accepts the XL-pattern True Precision or SIG factory threaded barrel; the X-Macro Comp slide cannot be threaded because the integrated comp blocks access. If you own the Comp and want a can, you need True Precision's slide conversion kit, not a barrel swap.

1

True Precision Threaded Match Barrel (P365 XL / X-Macro)

Best Match-Grade Threaded

$170.99
View at OpticsPlanet
Match-Grade1/2x28X-Macro Fit
  • +Match-grade 416R stainless with broach-cut rifling
  • +1/2x28 threading for 9mm cans and comps
  • +Fits 3.7" P365XL, X-Macro, and X-Macro Tacops (NOT the X-Macro Comp slide)
  • X-Macro Comp slide needs True Precision's separate slide conversion kit instead
  • Test for reliability with carry ammo before trusting it
  • Thread protector sold separately
Material: 416R stainless steelThreading: 1/2x28Fitment: 3.7" XL / X-Macro / X-Macro Tacops
2

SIG Factory Threaded Barrel P365

Best Factory Threaded

$219.99
View at OpticsPlanet
Factory SIG1/2x28
  • +Factory fitment guaranteed on standard P365 slides
  • +1/2x28 threading and SIG QC
  • +Maintains full SIG warranty
  • Standard factory accuracy, not match-grade like True Precision
  • X-Macro shooters should confirm SKU fits the 3.7-comp slide before ordering
  • Extends overall length and breaks most non-threaded holsters
Material: Black nitrideThreading: 1/2x28Fit: Factory drop-in

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Best X-Macro Weapon Lights

The X-Macro accessory rail accepts both SIG-key and 1913-key TLR-7 Sub variants, but the holster ecosystem is built around the 1913 version. Tier 1 Concealed, Tenicor Velo Lux, PHLster Enigma, and Henry Holsters all design around the 1913-keyed light. The SIG-key variant fits the gun but cuts your holster pool roughly in half. For the full pistol light comparison across platforms, see our best pistol lights guide.

1

Streamlight TLR-7 Sub (1913)

Best Slim Light for X-Macro

$149
View at OpticsPlanet
500 Lumens1913 Rail
  • +1913 rail-key variant snaps onto the X-Macro accessory rail with no slop
  • +500 lumens in a footprint that does not extend past the X-Macro muzzle
  • +Largest light-bearing holster ecosystem for X-Macro (PHLster, Tenicor Velo Lux, Tier 1, Henry, Four Brothers)
  • 5,000 candela throw is short for outdoor distance
  • CR123A primary battery, not rechargeable
  • Only the 1913 rail variant fits X-Macro holsters; the SIG-key version cuts holster compatibility
Lumens: 500Candela: 5,000Battery: CR123A
2

Streamlight TLR-7 HL-X 1913 Sub

Best High-Output X-Macro Light

$182.99
View at OpticsPlanet
1,000 LumensUSB-C1913 Sub
  • +1,000 lumens and 22,000 candela on the SL-B9 rechargeable battery
  • +USB-C charging or CR123A multi-fuel for backup
  • +Same TLR-7 Sub 1913 footprint, so it fits the same holster ecosystem
  • Slightly longer than the TLR-7 Sub; verify holster cut
  • Drops to 500 lumens on CR123A
  • Premium pricing over the TLR-7 Sub
Lumens: 1,000 (SL-B9) / 500 (CR123A)Candela: 22,000Battery: USB-C SL-B9 / CR123A

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Best X-Macro Holsters

The X-Macro's longer grip and 17-round magazine weight reward sidecar designs that distribute reload weight forward of the waistband, and body-contoured shells that rotate the grip into the body. Light-bearing carry assumes a 1913-key TLR-7 Sub; if you run unlit, the Tier 1 and Tulster picks below handle the bare gun. The wider concealed-carry holster matrix lives in our concealed carry holster guide.

1

Tier 1 Axis Elite

Best AIWB Sidecar

$145
Buy Direct from Tier 1
AIWB SidecarShock-Cord Hinge
  • +Shock-cord hinge between holster and mag caddy lets the longer X-Macro grip flex against the body
  • +Sidecar mag carrier balances 17-round reload weight at the front of the waistband
  • +Supports light-bearing X-Macro builds and suppressor-height sights
  • $145 is premium pricing for a kydex holster
  • Custom orders ship in 10-20 business days
  • Sidecar adds width over a standalone holster
Carry: AIWB sidecarHinge: Mil-spec shock cordSights: Suppressor-height compatible
2

Tenicor Velo Lux for SIG

Best Light-Bearing Standalone AIWB

$125
View Deal
AIWBLight-Bearing1913 Clamp
  • +Built explicitly for the P365 X-Macro plus TLR-7 Sub on the 1913 rail clamp
  • +Same body-contoured shell that made the Velo 5 a deep-concealment benchmark
  • +DCC MOD4 clips with over an inch of ride-height adjustment
  • Only retains when the light is attached; not usable as an unlit holster
  • Appendix only, no OWB
  • Premium pricing at $125
Carry: AIWB onlyLight: TLR-7 Sub (1913)Clips: DCC MOD4, three locations
3

PHLster Enigma

Best Beltless Carry System

$93
View Deal
BeltlessV2 Faceplate
  • +Carries the X-Macro under athletic wear, dresses, and beltless cuts
  • +V2 faceplate adds grip to keep the longer X-Macro grip from rotating
  • +Two leg-leash options dial in fit for the 17-round magazine length
  • Setup curve is real; expect a couple weeks of dialing
  • Requires a compatible kydex shell sold separately
  • Pressure points can develop on long all-day wear
Carry: AIWB beltlessSystem: Chassis + leg leashShell: Sold separately
4

Tulster Profile

Best Minimalist IWB

$65
Buy Direct from Tulster
IWBSingle ClipBudget
  • +Cheapest serious kydex IWB for the X-Macro at $65
  • +Hand-buffed edges and rounded sweat guard sit clean against skin
  • +Minimal footprint helps the longer X-Macro grip print less
  • Single clip can shift more than a dual-clip or sidecar setup
  • No integrated claw or wedge
  • Not light-bearing; pair with the Velo Lux above if you run a TLR-7 Sub
Carry: IWB / AIWBCant: 0-30 degreesConstruction: .080" Kydex

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Standard X-Macro vs X-Macro Comp: What Crosses Over

The standard X-Macro (3.7-comp slide with integrated porting) and the X-Macro Comp (3.7 slide with external barrel-mounted compensator) share most parts but split on a few. Knowing which upgrades cross saves a return shipment.

Grip Modules
Standard X-MacroWilson, Tyrant, Icarus, factory
X-Macro CompSame; 17-rd mags required
Triggers
Standard X-MacroX-Series Flat (drop-in)
X-Macro CompShips with X-Series Flat from factory
Optics
Standard X-MacroShield RMSc native
X-Macro CompShield RMSc native
Threaded Barrels
Standard X-MacroTrue Precision XL barrel ($170)
X-Macro CompRequires TP slide conversion kit ($574)
Lights
Standard X-MacroTLR-7 Sub 1913 fits rail
X-Macro CompExternal comp can crowd light bezel; verify holster fit
Holsters
Standard X-MacroTier 1, Tenicor, PHLster, Tulster
X-Macro CompComp-specific cuts; check holster description
Suppressor
Standard X-MacroYes with threaded barrel
X-Macro CompNo (external comp blocks threads)

Key takeaway: Grip modules, triggers, and optics cross fully. Threaded barrels and suppressor compatibility split: the standard X-Macro takes a barrel swap, the X-Macro Comp needs a slide conversion. Holster cuts for the Comp need to be Comp-specific because the external barrel comp adds length and changes the muzzle profile.

X-Macro Upgrade Comparison: Top Pick per Category

Magazine
$55
Top PickSIG P365 X-Macro 17rd (OEM)
WhyHighest ROI; buy 3-5 before any other upgrade
Optic
$389
Top PickHolosun EPS Carry
WhyEnclosed RMSc, solar failsafe, side-load battery
Grip Module
$65
Top PickWilson Combat WCP365
WhyBest value, aggressive texturing, drop-in
Light
$149
Top PickStreamlight TLR-7 Sub (1913)
WhyWidest light-bearing holster ecosystem
Trigger
$79
Top PickSIG X-Series Flat
WhyFactory-grade flat shoe, drop-in, warranty intact
Threaded Barrel
$170
Top PickTrue Precision Match P365XL
WhyMatch-grade, fits standard X-Macro (NOT Comp)
Holster
$145
Top PickTier 1 Axis Elite
WhyAIWB sidecar, X-Macro grip + 17rd mag flex

All seven top picks total $952. The first three (mags + optic + grip at $509) cover 80% of the practical capability gain.

Stock Up on X-Macro Magazines (Do This First)

Why magazines come first: The X-Macro's 17+1 capacity is the platform's headline feature, but it only matters if you actually have the mags to feed it. A single carry mag plus the one in the gun gives you 35 rounds before a reload pause; three carry mags plus training mags puts you at full duty load-out for under $300. Magazines wear with use, not age, so rotating a stack of five lets each one cool down between range sessions and extends total service life.

How many to buy: Plan for at least five. One in the gun, two on the body for carry rotation, two for training and class days. For home defense staging, add a sixth mag pre-loaded at the bedside or in a quick-access safe; the X-Macro's 17+1 capacity is most of the case for the platform over a standard P365, and you should lean into it.

Variant compatibility: The X-Macro 17-round magazine is a different SKU from the standard P365 and P365 XL mags. It will not seat flush in a 3.1-inch standard P365 or a 3.7-inch P365 XL with stock grip; use the X-Macro grip module to feed 17-round mags from those hosts. Aftermarket P365 magazines are thin compared to Glock or P320; stick to OEM SIG factory mags for the carry gun.

Recommended X-Macro Magazines

Magazines & Feeding • $55

SIG P365 X-Macro 17-Round Magazine

  • 17 rounds
  • 9mm
$64.49
View at OpticsPlanet

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Still Cross-Shopping the Compensated Carry Class?

The X-Macro is the deepest aftermarket in the integrally-compensated compact 9mm class, but it competes against the P365 XL Comp and the subcompact field below it. For the broader subcompact picture, see our best subcompact 9mm pistols guide. For the head-to-head against the Hellcat and Glock 43X, our best CCW pistol guide covers the matrix. The SIG Fuse Comp, the X-Macro's slide-integrated-compensator sibling reviewed in our P365-FUSE COMP article, is the closest factory alternative if you want the comp without the X-Macro grip length. Use the rifle and pistol builder to spec an X-Macro configuration with the picks above already compatibility-checked against the host.

Frequently Asked Questions

What is the best trigger upgrade for the SIG P365 X-Macro?
The SIG X-Series Flat Trigger ($79) is the best trigger upgrade for the P365 X-Macro because it is the factory part SIG ships on the X-Macro Comp and Spectre Comp, drops in without gunsmithing, and preserves the SIG warranty. If you want a crisper wall, the Armory Craft Flat Trigger ($99) refines the geometry further but only gains marginal pull weight reduction over the factory shoe. Neither alters the striker safety system, and both fit the standard X-Macro and X-Macro Comp frames.
Does the SIG P365 X-Macro use a Romeo-X cut for optics?
The P365 X-Macro uses the Shield RMSc footprint, not a separate Romeo-X cut. SIG markets the ROMEO-X Compact Enclosed and the ROMEOZero Elite as their own RMSc-footprint optics, but the X-Macro slide accepts any Shield RMSc optic directly: Holosun EPS Carry, Holosun 507K X2 (the K footprint is closely related; some slides may need an adapter plate), Trijicon RMRcc, Shield RMSc, Olight Osight SE, and Vortex Defender-CCW all mount without modification. The X-Macro Comp slide uses the same cut.
Will a True Precision threaded barrel fit the P365 X-Macro Comp?
No. The True Precision Threaded Match Barrel for P365 XL fits the 3.7-inch P365XL, X-Macro, and X-Macro Tacops, but it does not fit the X-Macro Comp slide. For the Comp, True Precision sells a separate X-Macro Comp Threaded Barrel and Slide Conversion Kit ($574) that swaps the entire slide assembly for an Axiom-cut threaded version. The standard X-Macro takes the $170 XL-pattern barrel directly.
What holsters fit the P365 X-Macro with a TLR-7 Sub?
The light-bearing P365 X-Macro with a TLR-7 Sub (1913 rail version) is supported by the Tenicor Velo Lux for SIG ($125, AIWB only, light-bearing), Tier 1 Concealed Axis Elite ($145, AIWB sidecar with optional light cut), PHLster Enigma (chassis system with a kydex shell that accepts the light), and Henry Holsters Ember on the Enigma V2 platform. Critical detail: only the 1913 rail-key version of the TLR-7 Sub is supported by these holster cuts. The SIG-key variant cuts holster compatibility.
Is the SIG P365 X-Macro worth upgrading?
Yes, the X-Macro is worth upgrading and the highest-ROI sequence is mags first, then grip module, then optic, then light. Spare 17-round magazines ($55 each, three to five copies) are the single biggest force multiplier and make every other upgrade reach its potential. The Wilson Combat WCP365 grip ($65) or Tyrant CNC X-Macro grip ($80) is the cheapest performance gain on the gun itself. After that, a Holosun EPS Carry ($389) or SIG ROMEO-X Compact Enclosed ($500) on the factory RMSc cut and a Streamlight TLR-7 Sub ($149) cover defensive-use capability.
How many X-Macro magazines should I own?
Plan for at least five P365 X-Macro 17-round magazines ($55 each, $275 total): one in the gun, one spare for carry, two for training and class days, and one in deep storage as a wear-cycle backup. Steel-body P365 magazines are durable but follower springs do wear with repeated full loading; rotating five mags lets each one cool down between range trips and keeps you running 85 rounds before a reload at the bench. The X-Macro 17-round mags also fit the standard P365 and P365 XL with grip extension, so the spend carries over if you upgrade or downsize the host.
Can the X-Macro be suppressed?
The standard P365 X-Macro can be suppressed with a True Precision Threaded Match Barrel or SIG factory threaded barrel ($170-$179), both 1/2x28. The X-Macro Comp cannot be suppressed because the integrated compensator and external comp variants block thread access; True Precision's slide conversion kit replaces the comp slide with an Axiom-cut threaded slide if you want to run a can on a Comp-pattern host. Under OBBBA the federal suppressor tax is $0 effective 2026-01-01, but the Form 4 process, fingerprints, and NICS check still apply.