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B5 Systems

B5 Systems is an industry leader in U.S. military and aerospace manufacturing. With a passion for quality design and engineering, B5 Systems have created some of the finest firearms accessories on the market.

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B5 Systems

B5 Systems Rifle Parts
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B5 Systems Products

B5 SYSTEMS

B5 SYSTEMS CAR-15 BUTTSTOCK MIL-SPEC BLACK
CAR-15 BUTTSTOCK MIL-SPEC

Buttstocks

Brownells, in collaboration with B5 Systems, offers a Mil-Spec buttstock ideal for XM177 clones or early AR builds.
The CAR-15 buttstock is made from durable Mil-Spec polymer and comes in black.
This American made buttstock is a high-quality, accurate, and dependable choice for AR or clone rifle assembly.

In stock

£69.90

Upgrade your AR-15 with the SOPMOD Bravo Stock! 🛡️ Enjoy improved comfort, stealthy operation, and secure adjustments for optimal performance.

B5 SYSTEMS

B5 SYSTEMS AR-15 BRAVO STOCK COLLAPSIBLE MIL-SPEC BLK
AR-15 SOPMOD BRAVO STOCK COLLAPSIBLE MIL-SPEC

Buttstocks | Rifle Stocks

The B5 Systems AR-15 SOPMOD Bravo Stock is a military-employed, collapsible stock made of reinforced polymer, designed for M4-type receiver extensions.
It features an improved cheekweld for comfort, streamlined contours for snag-free operation, and a Sure-Grip latch for easy length adjustment.
Equipped with a black stainless steel QD swivel mount, anti-slip rubber recoil pad, and two molded sling slots for secure weapon handling.

In stock

£84.90 £84.90 - £114.90

B5 SYSTEMS

B5 SYSTEMS COLLAPSIBLE PRECISION STOCK 556 BLACK- MEDIUM
556 COLLAPSIBLE PRECISION STOCKS

Buttstocks

The B5 Systems Collapsible Precision Stock is adjustable and compact, offering a solid mount for accurate shooting while being easy to store and transport.
It includes an ambidextrous quick-detach sling-swivel socket, multiple fixed sling mounts, a lockable adjustment lever, and an M-LOK attachment point.
The stock is available in a variety of colors including black, with a polymer construction and mil-spec type design.

In stock

£284.90 £279.90 - £284.90

B5 SYSTEMS

B5 SYSTEMS AR-15 ACCESSORY CHEEK PIECE BLACK
AR-15 ACCESSORY CHEEK PIECE

Cheek Pieces

The B5 Systems AR-15 Accessory Cheek Piece is compatible with all variants of the B5 Collapsible Precision Stock and provides 3/8" of added height and horizontal adjustment.
Constructed from Mil-Spec materials with a soft overmold, it ensures durability and increased comfort.
The cheek piece is available in standard colors, weighs 2.00 oz., and has dimensions of 4.50 inches in length and 2.43 inches in width.

In stock

£32.90 £31.90 - £32.90

B5 SYSTEMS

B5 SYSTEMS AR-15 PRECISION STOCK COLLAPSIBLE COYOTE BROWN
AR-15 PRECISION STOCKS COLLAPSIBLE

Buttstocks

The B5 Systems Collapsible Precision Stock is adjustable with an integrated cheekpiece and buttpad, designed to fit Mil-Spec carbine receiver extensions.
It includes features such as internal tensioners, ambidextrous sling mounts, M-LOK® accessory mount, and is made in the USA with Mil-Spec materials.
Available in Coyote Brown, the stock is optimized for rifles with side charging or a LAW side folding adapter, with dimensions of 8.5" length, 2.00" width, and 4.35" height, weighing 20.65 oz.

In stock

£284.90 £284.90 - £289.90

B5 SYSTEMS

B5 SYSTEMS TRIGGER GUARD FLAT DARK EARTH COMPOSITE
AR-15 TRIGGER GUARDS COMPOSITE

Trigger Guards

The B5 Systems Trigger Guard is an upgrade for AR-15s, offering an enlarged profile suitable for use with gloves.
It retains the swing down function for compatibility with heavier gloves, but replaces the spring-loaded plunger with a screw-in retaining screw.
This trigger guard features a set screw attachment pin and has a Flat Dark Earth finish.

1.5

In stock

£15.90

B5 SYSTEMS

B5 SYSTEMS AR-15 SOPMOD STOCK COLLAPSIBLE MIL-SPEC COYOTE BROWN
AR-15 ENHANCED SOPMOD STOCK COLLAPSIBLE MIL-SPEC

Buttstocks | Rifle Stocks

The B5 Systems SOPMOD stock is designed for M4-type receiver extensions, featuring an enhanced cheekweld for comfort and consistency.
Equipped with two waterproof storage compartments for battery storage and a non-slip rubber recoil pad for secure shouldering.
Incorporates a black, stainless steel QD swivel mount and two sling slots for convenient carrying and handling options.

4.5

In stock

£144.90 £139.90 - £159.90

B5 SYSTEMS

B5 SYSTEMS AR-15 CARBINE HANDGUARD M-LOK BLACK
AR-15 HANDGUARDS M-LOK

Handguards & Rails

Two piece drop-in M-LOK handguards designed for AR-15s, offering a slim diameter and ergonomic design with a built-in handstop.
Durable polymer construction with a stamped aluminum heat shield, compatible with both round and triangle handguard caps.
Available in Carbine (7 inches, 3.90 oz) and Mid-Length (9 inches, 5 oz) sizes, with six sides of M-LOK attachment points for accessories.

In stock

£49.90 £41.90 - £49.90

Upgrade your AR-15 with the ergonomic P-GRIP 23 in Flat Dark Earth 🌍. Durable composite for better control and comfort!

B5 SYSTEMS

B5 SYSTEMS P-GRIP 23 FLAT DARK EARTH COMPOSITE
AR-15 P-GRIP 23 COMPOSITE

Pistol Grips

In stock

£32.90

B5 SYSTEMS

B5 SYSTEMS COLLAPSIBLE PRECISION STOCK COYOTE BROWN- SHORT
308 COLLAPSIBLE PRECISION STOCKS

Buttstocks

The B5 Systems Precision Stock offers toolless adjustment for length of pull and cheek height and locks in place for consistent shooter setup.
Compatible with both carbine/A5 receiver extensions and the Law Tactical Folding Stock Adapter for versatile use and transport.
Includes multiple sling mounting options and M-LOK attachment points for additional accessories.

In stock

£279.90 £279.90 - £284.90

B5 SYSTEMS

B5 SYSTEMS AR-15 P-GRIP 22 GRAY
AR-15 P-22 GRIPS

Pistol Grips

The B5 Systems Type 22 P-Grip is designed with an increased vertical grip angle to enhance ergonomics and ensure proper trigger positioning.
It features an aggressive texture for improved retention and accepts a Battery Grip Plug, made of Mil-Spec polymer material.
The grip is made in the USA, lacks a backstrap to allow the hand to sit higher for better engagement, and is available in standard colors including gray.

In stock

£31.90

B5 SYSTEMS

B5 SYSTEMS AR-15 END PLATE STEEL BLACK
AR-15 QD END PLATE

Buffer Tube Hardware

The B5 Systems AR-15 End Plate is made of steel with a phosphate finish for corrosion resistance.
It features a quick disconnect design for single point slings with limited rotation to ensure proper staking.
This product is proudly manufactured in the USA and fits AR-15 rifles.

In stock

£29.90

B5 SYSTEMS

B5 SYSTEMS AR-15 BRAVO STOCK MIL-SPEC FIXED DO GREEN
AR-15 BRAVO STOCKS FIXED

Buttstocks

The B5 Systems Bravo-C stock is a fixed buttstock with an ergonomic cheek weld, over molded steel anti-rotational QD sling mounts, and a no-slip cushioned buttpad, designed for AR-15 platforms.
It is constructed from Mil-Spec materials and finishes, ensuring durability and compatibility with Mil-Spec carbine receiver extensions through a setscrew attachment.
The stock is available in O.D. Green and other standard colors, with dimensions of 8.73 inches in length, 2.00 inches in width, and 4.90 inches in height, weighing 10.25 oz.

In stock

£84.90

B5 SYSTEMS

B5 SYSTEMS AR-15 STANDARD BUTT PAD GRAY
AR-15 STANDARD BUTT PADS

Butt Plates

Direct replacement for B5 Systems SOPMOD, Bravo, and Bravo-C buttstocks with a non-slip, cushioned surface.
Constructed from heat and chemical resistant material with an internal compartment for the MultiTasker M:4 tool (sold separately).
Features toolless installation and is available in standard colors to match your AR-15.

In stock

£25.90 £25.90 - £29.90

Enhance your AR-15 with our Coyote Brown Battery Grip Plug! 🌟 Water-resistant and compatible with various batteries for easy use.

B5 SYSTEMS

B5 SYSTEMS AR-15 GRIP PLUG COYOTE BROWN
AR-15 BATTERY GRIP PLUGS

Pistol Grip Components

The B5 Systems AR-15 Grip Plug is a water and dust resistant storage accessory for Type 23 and 22 P-Grips.
It is compatible with multiple battery types including AA, 123A, CR2032, and also fits the MultiTasker NANO Tool.
Designed for easy removal and installation, the grip plug is available in Coyote Brown and other standard colors.

In stock

£18.90

B5 SYSTEMS

B5 SYSTEMS AR-15 TRIGGER GUARD COMPOSITE GRAY
AR-15 BRAVO TRIGGERGUARDS

Trigger Guards

The B5 Systems Bravo trigger guard is a drop-in upgrade for AR-15s, designed to accommodate glove use in cold weather or tactical situations.
This trigger guard is made in the USA, featuring either 6061 aluminum or composite material with a Mil-Spec Type III anodized finish in gray.
It preserves the swing-down function for compatibility with heavier gloves and measures 2.10 inches in length, 0.53 inches in height, and weighs 3.00 ounces.

In stock

£15.90 £15.90 - £31.90

Upgrade your AR-15 with the Gov Issue SOPMOD Stock! 🌟 Designed for accuracy, this collapsible Mil-Spec stock is perfect for your build.

B5 SYSTEMS

B5 SYSTEMS GOVERNMENT ISSUE SOPMOD STOCK COLLAPSIBLE MIL-SPEC COYOTE
AR-15 GOVERNMENT ISSUE SOPMOD STOCK COLLAPSIBLE MIL-SPEC

Buttstocks

B5 Systems offers limited Government Issue AR-15 SOPMOD stocks, identical to Enhanced SOPMOD stocks used by the U.S. Government, perfect for clone rifle builds.
The Government Issue SOPMOD stocks lack a QD mount and commercial logo, differentiating them from their commercial versions.
Available in Coyote color, these mil-spec polymer collapsible stocks are packaged as delivered to the U.S. Government.

In stock

£139.90

B5 SYSTEMS

B5 SYSTEMS M-LOK RAIL COVER FDE
M-LOK RAIL COVERS

The M-LOK Rail Covers by B5 Systems are designed to fit most machined and polymer handguards, providing a low-profile, press-in fit.
They offer a non-slip grip with ribbing for extra traction and are resistant to heat and chemicals.
These rail covers come in Flat Dark Earth and other standard colors, sold in packs of 4, each cover filling 3 M-LOK sections.

In stock

£28.90

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