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July 4, 2026
Beretta A300 Ultima Patrol Accessories & Upgrades 2026

The A300 Ultima Patrol comes tactical-ready from the factory. This guide covers the optic and C&H mount, weapon light, Mesa Urbino stock, and sling upgrades worth buying, plus which 1301 parts do and do not fit.

Beretta A300 Ultima Patrol Accessories & Upgrades 2026

The Beretta A300 Ultima Patrol is the value tactical shotgun that costs far less than the Benelli M4. What makes it unusual is how much it already comes with. The Ultima Patrol trim ships from the factory with an oversized charging handle, an extended bolt release, an enlarged loading port, a 7+1 extended magazine tube, an M-LOK forend, and an installed optic rail. Those are the exact parts Beretta 1301 owners spend hundreds of dollars adding after the fact. So the A300 upgrade path is not about fixing the gun. It is about knowing what to skip and where the remaining money actually earns its keep: an optic, a mount, a light, a stock, and a sling.

By AB|Last reviewed July 2026

What the A300 Ultima Patrol Already Has (Skip These Upgrades)

The A300 Ultima Patrol comes tactical-ready, so the first thing to understand is which popular shotgun upgrades you do not need to buy. On a standard A300, or on a 1301 Tactical, owners routinely spend on an oversized bolt release, an enlarged charging handle, a bigger loading port, and a magazine tube extension. The Ultima Patrol includes all of that from the factory.

Oversized charging handle
Included
What It MeansNo TTI/aftermarket handle needed
Extended bolt release
Included
What It MeansGlove-friendly out of the box
Enlarged loading port
Included
What It MeansFaster reloads, no port work
Oversized reversible safety
Included
What It MeansAmbidextrous from the factory
7+1 extended mag tube
Included
What It MeansSkip the tube extension entirely
M-LOK forend + barrel clamp
Included
What It MeansLights mount M-LOK direct
7-slot Picatinny optic rail
Included
What It MeansRed dot ready, no rail to buy
3 QD sling points
Included
What It MeansTwo-point sling clips right in

The takeaway:Every "must-have first upgrade" from a standard shotgun build is already handled on the Patrol. That frees the budget for the three things the factory left off: an optic, a light, and a stock.

A300 Ultima Patrol Upgrade Priority: What to Buy First

Buy the optic first. On a shotgun that already has its controls and capacity sorted, a red dot is the single biggest capability jump, followed by a light for target identification. Here is the order that gives you the most capability per dollar on the Patrol.

Red Dot Optic
$300-$617
Priority1
ImpactFaster aiming, extends slug range
Optic Mount (if lower dot)
$80
Priority2
ImpactSits an enclosed dot low over the bore
Weapon Light
$97-$359
Priority3
ImpactEssential for target identification
Stock
$158
Priority4
ImpactPistol grip, short LOP for armor
Sling
$40
Priority5
ImpactRetention and transitions on factory QD
Shell Card
$17
Priority6
ImpactOn-gun reload ammo

Key insight: An optic plus a light covers the two things the factory left off, for roughly $400 to $970 depending on tier. Plan your build in our rifle builder to see how the optic, mount, and light stack up before you buy.

Beretta A300 Ultima Patrol base platform

Base Platform

Beretta A300 Ultima Patrol

Beretta / $909.12 base

Gas-operated defensive shotgun with oversized controls, enlarged loading port, 7-round 2.75-inch capacity, and strong value in tactical semi-autos.

Upgrade Builder

Price Out Your Beretta A300 Ultima Patrol Upgrades

Open any slot to add an upgrade; the total updates in place and every part keeps its tracked retailer link.

Build total
$0.00
0
Picks
OpticOptional

Fast acquisition optics for defensive shotgun use.

Skipped

No upgrade selected for this slot.

$0 to build
Weapon LightOptional

Positive target identification in low light.

Skipped

No upgrade selected for this slot.

$0 to build
StockOptional

Stock upgrades for recoil control and fit.

Skipped

No upgrade selected for this slot.

$0 to build

Optics & C&H Mounts for the A300 Ultima Patrol

The Holosun AEMS Core X2 ($300) is the best A300 Ultima Patrol optic: an enclosed dot with an integrated Picatinny base that drops straight onto the factory 7-slot rail. A red dot is the highest-value upgrade on this gun, and you have two mounting paths. Run a dot with an integrated base like the AEMS on the factory rail, or add a C&H Precision receiver mount to sit an enclosed dot lower over the bore for a better cheek weld. On a gas-operated shotgun, favor an enclosed emitter so blowback debris does not foul the lens mid-session. For the full field of shotgun optics with recoil ratings, see our best shotgun red dot guide.

1

Holosun AEMS Core X2

Best overall optic - enclosed emitter with an integrated mount for the factory rail

$299.99
View at OpticsPlanet
Enclosed EmitterIntegrated Mount
  • +Fully enclosed emitter shrugs off the gas and debris that foul open dots on a semi-auto shotgun
  • +Integrated lower-1/3 Picatinny mount drops straight onto the A300's factory 7-slot rail, no separate receiver mount to buy
  • +Large 1.26 x 0.98-inch window with a clean 2 MOA dot suits fast shotgun target acquisition
  • Sits higher than a receiver-mounted C&H setup, so co-witness is a compromise
  • Larger footprint than a micro dot
Emitter: EnclosedMount: Integrated PicatinnyBattery: 50,000 hrs
2

Holosun EPS Carry

Best low-mount enclosed dot - pairs with the C&H RMSc receiver mount for a co-witnessing setup

$399.99
View at OpticsPlanet
Enclosed EmitterLow Receiver Mount
  • +Fully enclosed emitter is the right call on a gas gun
  • +Sits low on the C&H Precision RMSc receiver mount, close to the bore for a natural cheek weld
  • +Green or red reticle options with a multi-reticle system
  • Smaller window than a full-size shotgun dot
  • Requires the C&H RMSc mount, sold separately
  • Pricier than the AEMS Core X2 for a smaller window
Emitter: EnclosedFootprint: RMSc / KMount: C&H RMSc receiver
3

Aimpoint ACRO P-2

Best premium/duty dot - sealed enclosed housing, pairs with the C&H ACRO mount

$617.00
View at OpticsPlanet
Sealed EnclosedDuty-Grade
  • +Fully sealed enclosed emitter rated for heavy recoil and submersion
  • +5-year battery life on a single CR2032
  • +Duty-grade durability if the budget stretches past the value tier
  • Heaviest and most expensive option, above the A300's value sweet spot
  • Requires the C&H ACRO mount, sold separately
Emitter: Sealed enclosedBattery: 5 yr (CR2032)Footprint: ACRO
4

Holosun 507COMP

Best big-window competition dot - RMR/C-footprint for the C&H RMR mount

$369.99
View at OpticsPlanet
Large WindowMulti-Reticle
  • +Largest window in its class for the fastest target acquisition
  • +Multi-reticle system (2 MOA dot with a selectable 8, 20, or 32 MOA circle)
  • +Solar failsafe extends the 50,000-hour battery
  • Open emitter is exposed to shotgun gas fouling and debris over long sessions, best kept to clean-running/competition use
  • Requires the C&H RMR mount, sold separately
Window: LargeReticle: 2 MOA + 8/20/32 ringEmitter: Open
5

C&H RMR / A300 Mount

Receiver mount for RMR / Holosun-C footprint dots (507COMP, 507C, RMR)

$80
Shop at C&H Precision
A300/A400/1301 FitRMR/C Footprint
  • +Direct A300 / A400 / 1301 receiver fit, no rail adapter needed
  • +Puts an RMR/C-footprint dot low over the bore
  • +Machined for a repeatable return to zero on the receiver
  • Footprint-locked to RMR/C-pattern optics
  • Adds a receiver-mount purchase on top of the optic
Fit: A300 / A400 / 1301Footprint: RMR / Holosun-CMount: Receiver
6

C&H RMSc / A300 Mount

Receiver mount for RMSc / Holosun-K footprint dots (EPS, EPS Carry, 407K/507K)

$80
Shop at C&H Precision
A300/A400/1301 FitRMSc/K Footprint
  • +Direct A300 / A400 / 1301 receiver fit for compact enclosed dots
  • +Supports the EPS Carry, 407K/507K, and RMSc-pattern optics
  • +Sits an enclosed dot low over the bore for a natural cheek weld
  • Footprint-locked to RMSc/K-pattern optics
  • Adds a receiver-mount purchase on top of the optic
Fit: A300 / A400 / 1301Footprint: RMSc / KMount: Receiver
7

C&H ACRO / A300 Mount

Receiver mount for ACRO-footprint dots (Aimpoint ACRO P-2, C&H DUTY)

$80
Shop at C&H Precision
A300/A400/1301 FitACRO Footprint
  • +Direct A300 / A400 / 1301 receiver fit for enclosed ACRO optics
  • +Puts a sealed ACRO dot low over the bore for duty use
  • +Machined for a repeatable return to zero on the receiver
  • Footprint-locked to ACRO-pattern optics
  • Adds a receiver-mount purchase on top of the optic
Fit: A300 / A400 / 1301Footprint: ACROMount: Receiver

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Best Weapon Lights for the A300 Ultima Patrol

The SureFire M640DFT-PRO (700 lumens, 100,000 candela) is the best light for the Patrol, and its turbo head throws hard for target ID at distance while scout-mounting straight to the factory M-LOK forend with no extra hardware. A weapon light is non-negotiable on a defensive shotgun. The factory forend carries three M-LOK slots and the barrel clamp adds more, so a scout-pattern body bolts on M-LOK direct. Pick premium throw with the SureFire, or match the gun's value pricing with the 1,000-lumen Streamlight ProTac HL-X, which includes a pressure switch but needs a short M-LOK rail section for its Picatinny mount.

1

SureFire M640DFT-PRO Turbo Scout Light Pro

Best premium light - 100,000 candela turbo throw, scout-mounts to the factory M-LOK

$359.49
View at OpticsPlanet
100k CandelaScout / M-LOK
  • +700 lumens and 100,000 candela of turbo throw for positive target identification at distance
  • +Scout-pattern body mounts to the A300's factory M-LOK forend or the M-LOK barrel clamp
  • +Dual-fuel runs 18650 or CR123A
  • Premium price relative to the A300's value positioning
  • Turbo head extends overall length
Output: 700 lm / 100k cdFuel: 18650 / CR123AMount: Scout / M-LOK
2

Streamlight ProTac HL-X

Best value light - 1,000 lumens with a pressure switch included

$96.52Save 38%
View at Amazon
1,000 LumensBest Value
  • +1,000 lumens at a price that matches the A300's value build
  • +Ships with both M-LOK and Picatinny mounts plus a remote pressure switch
  • +Dual-fuel CR123A or 18650
  • Bulkier than a scout-pattern light
  • 50,000 candela throw trails the SureFire's turbo head
Output: 1,000 lumensBattery: 2x CR123A / 18650Mount: M-LOK + Picatinny

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Best Stock Upgrade for the A300 Ultima Patrol

The Mesa Tactical Urbino is the stock upgrade for the A300, and it is a drop-in pistol-grip replacement with a short 12.5-inch length-of-pull built for armor and tight interior angles. It is the same product Mesa sells for the 1301; Mesa modified the sling-plate blank to clear the A300's return-spring tube, so one SKU covers both guns. If you want a drop-in pistol-grip stock with a short length-of-pull, the Urbino is the pick.

1

Mesa Tactical Urbino Pistol-Grip Stock

Best stock - pistol-grip Urbino, confirmed to fit both the A300 and 1301

$158.49
View at OpticsPlanet
Pistol GripA300 + 1301 Fit
  • +Same product fits the A300 and 1301; Mesa modified the sling-plate blank to clear the A300's return-spring tube
  • +12.5-inch short length-of-pull keeps the gun maneuverable in armor, chest rigs, and tight interior angles
  • +Positive pistol-grip geometry helps the gun track flatter under 12-gauge recoil
  • Heavier than the factory stock
  • Host-specific fitment; the Benelli M4 Urbino is a separate SKU
Grip: Pistol gripLOP: 12.5 inFit: A300 + 1301

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Best Sling for the A300 Ultima Patrol

A two-point sling is the last piece, and the Patrol's three factory QD sling points mean it clips in with no extra hardware. The Magpul MS1 gives you a fast pull-tab length adjuster for transitions and retention, in durable nylon at a value price that fits the A300's budget positioning.

1

Magpul MS1 Two-Point Sling

Best sling - two-point with a fast length adjuster, uses the factory QD points

$36.75
View at Amazon
Two-PointQD Ready
  • +Clips into the A300's three factory QD sling points with no extra hardware
  • +Quick pull-tab length adjustment for transitions and retention
  • +Durable nylon webbing at a value price
  • No shoulder padding
  • QD swivels are sold separately if you want to relocate mounting points
Type: Two-pointAttach: Factory QD pointsAdjust: Quick pull-tab

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Do Beretta 1301 Parts Fit the A300 Ultima Patrol?

Most Beretta 1301 parts fit the A300, but two common ones do not, and getting this wrong wastes money. The A300 and 1301 share a receiver family, which is why the Mesa Urbino stock and the C&H Precision receiver mounts carry the same fitment. But the receivers are not identical, and two popular 1301 upgrades will not work on the Patrol.

Mesa Tactical Urbino stock
Yes
WhySame SKU, sling-plate blank clears the A300 spring tube
C&H RMR / RMSc / ACRO mounts
Yes
WhyListed for A300 / A400 / 1301 receivers
Universal velcro shell cards
Yes
WhyAttach to any hook-and-loop receiver panel
Aridus CROM optic mount
No
Why1301-only; A300 receiver hole spacing differs
Nordic Components +2 mag kit
No
WhyFor the 5-round tube; Patrol already has the 7-round tube

The rule of thumb: confirm any listing names the A300 Ultima Patrol specifically, not just the 1301. If you are cross-shopping the two platforms and their upgrade paths, our Beretta 1301 upgrades guide covers the parts a 1301 needs that the Patrol already includes, like the loading-port work and the mag tube extension.

Stock Up on Shells, Skip the Tube Extension

Do not buy a magazine tube extension for the Patrol; it already ships 7+1 with a factory extended tube and barrel clamp, and the common Nordic Components +2 kit is explicitly not compatible with that factory 7-round tube. What is worth buying is on-gun ammo. A velcro shell card stages seven extra rounds of 12 gauge on the receiver for immediate reloads, weighs less than a rigid side-saddle, and lets you swap pre-loaded cards for consistent range or duty staging. Keep a couple loaded and ready.

Recommended A300 Shell Card

Magazines & Feeding • $16.5

Esstac 7-Round Shotgun Card

  • 7-shell 12-gauge card
  • Elastic retention cells
$16.50 MSRP
View at OpticsPlanet

Affiliate links (?)

A300 Ultima Patrol Upgrade Cost Breakdown

Here is what a fully kitted A300 Ultima Patrol costs at two budget levels. The Patrol itself runs roughly $700 to $900, and because the controls and capacity are already handled, both builds stay lean.

Red Dot
Budget BuildAEMS Core X2 - $300
Full-Send BuildACRO P-2 - $617
Optic Mount
Budget BuildRail-direct - $0
Full-Send BuildC&H ACRO Mount - $80
Weapon Light
Budget BuildStreamlight HL-X - $97
Full-Send BuildSureFire M640DFT - $359
Stock
Budget Build-
Full-Send BuildMesa Urbino - $158
Sling
Budget BuildMagpul MS1 - $40
Full-Send BuildMagpul MS1 - $40
Shell Card
Budget BuildEsstac Card - $17
Full-Send BuildEsstac Card - $17
Total Added
Budget Build~$454
Full-Send Build~$1,271
Total (with gun)
Budget Build~$1,254
Full-Send Build~$2,071

Budget build (~$454): An enclosed rail-mounted dot, a value light, a sling, and a shell card make a fully capable defensive shotgun. Full-send build (~$1,271): A sealed duty dot on a receiver mount, a premium light, and the Urbino stock. Even fully built, the Patrol lands near the price of a bare Benelli M4.

Where the A300 Ultima Patrol Fits

The A300 Ultima Patrol is the value entry in the semi-auto tactical shotgun class, sitting below the Beretta 1301 Tactical and well under the Benelli M4. It runs a gas-operated action with a 19.1-inch chrome-lined barrel and cycles buckshot and slugs above roughly 1,200 fps. The trade versus the 1301 is a slightly heavier, less-tuned action and a lower price. For most home-defense and range use, that trade favors the Patrol. See exactly where it ranks against the 1301, Benelli M2/M4, and Mossberg in our best tactical semi-auto shotgun guide.

Because the Patrol arrives with its controls, capacity, forend, and rail already done, it is one of the few tactical shotguns where the "factory" configuration is genuinely complete. Your money goes to sighting and lighting the gun, not fixing it.

Related Shotgun Guides

Best Beretta 1301 Upgrades 2026 - The upgrade path for the 1301 Tactical, including the loading-port and mag-tube work the Patrol already comes with.

Best Tactical Semi-Auto Shotgun 2026 - Where the A300 ranks against the Benelli M4, Beretta 1301, and Mossberg 940.

Best Shotgun Red Dot Sights 2026 - Full breakdown of shotgun optics with recoil ratings, mount options, and battery life.

Best Home Defense Shotgun 2026 - How semi-autos like the A300 stack up against pumps for home defense.

Frequently Asked Questions

What are the most popular Beretta A300 Ultima Patrol accessories?
The highest-value A300 Ultima Patrol accessories are an enclosed red dot (the Holosun AEMS Core X2 mounts to the factory 7-slot Picatinny rail for around $300), a C&H Precision receiver mount if you want a lower dot, a weapon light on the factory M-LOK forend (SureFire M640DFT or the value Streamlight ProTac HL-X), a Mesa Tactical Urbino pistol-grip stock, a two-point sling on the factory QD points, and an Esstac shell card for on-gun ammo. Because the Patrol already ships with oversized controls and a 7+1 tube, most owners spend on optics and lights, not internals.
Do Beretta 1301 parts fit the A300 Ultima Patrol?
Most do, but not all. The Mesa Tactical Urbino stock, the C&H Precision RMR/RMSc/ACRO receiver mounts, and universal shell cards all fit both. Two do NOT: the Aridus CROM ghost-ring optic mount is 1301-only because the A300's receiver hole spacing is different, and the Nordic Components +2 magazine kit is not compatible with the Patrol's factory 7-round tube. Always confirm the listing names the A300 Ultima Patrol, not just the 1301.
Does the Beretta A300 Ultima Patrol need a magazine extension?
No. The A300 Ultima Patrol ships from the factory with a 7+1 extended magazine tube secured by a barrel clamp, so it already holds seven 2.75-inch shells. The common Nordic Components +2 kit is designed for the factory 5-round tube and is explicitly not compatible with the Patrol's factory 7-round tube. Spend the money on an optic or light instead.
What red dot fits the Beretta A300 Ultima Patrol?
Two paths. Mount a dot with an integrated Picatinny base, like the Holosun AEMS Core X2, directly to the factory 7-slot top rail. Or run a C&H Precision receiver mount to sit the dot lower over the bore: the RMR mount takes RMR/Holosun-C dots (507COMP, 507C), the RMSc mount takes Holosun EPS Carry and 407K/507K, and the ACRO mount takes the Aimpoint ACRO P-2. Favor an enclosed emitter on a gas shotgun so blowback debris does not foul the lens.
Can you shoot slugs out of a Beretta A300 Ultima Patrol?
Yes. The A300 Ultima Patrol has a 19.1-inch chrome-lined barrel with a cylinder/improved-cylinder choke that handles rifled slugs and buckshot for defensive and range use. Confirm your choke tube is rated for slugs before firing sabot loads, and keep loads at or above roughly 1,200 fps to cycle the gas system reliably.
What is the difference between the A300 Ultima Patrol and the standard A300?
The Ultima Patrol is the tactical trim. Versus the standard A300, it adds an oversized charging handle, an extended bolt release, an oversized reversible safety, an enlarged loading port, a 7+1 extended magazine tube with barrel clamp, a 3-slot M-LOK forend with QD sling points, and an installed 7-slot Picatinny optic rail. Those are the exact features 1301 owners often buy aftermarket, and the Patrol includes them from the factory.