Beretta A300 Ultima Patrol Accessories & Upgrades 2026

A300 Ultima Patrol Upgrade Priority: What to Buy First

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

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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

$329.99

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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

$743.00

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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

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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)

$79.99

RIFLECONFIG1010% off at checkout

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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)

$79.99

RIFLECONFIG1010% off at checkout

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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)

$79.99

RIFLECONFIG1010% off at checkout

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

$339.49

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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

$159.49

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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

$157.49Save 1%

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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

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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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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.

A300 Ultima Patrol Upgrade Cost Breakdown