B5 Systems

B5 Systems

B5 Systems

B5 Systems is a leading manufacturer of high-quality firearms components and accessories. Their product line includes stocks, handguards, grips, and more, each designed to provide superior performance, comfort, and durability. B5 Systems products are made with the user in mind, and are constructed using only the finest materials and advanced manufacturing techniques. Whether you're looking to upgrade your existing firearm or build a new one, B5 Systems has the products and expertise to help you achieve your goals. Browse their selection of stocks, handguards, grips, and other components to find the perfect products for your needs.

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  • Qty in Cart
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  • Price
  • Subtotal
  • Dirty Bird AR-15 ASAL Free Float Quad Rail

    Dirty Bird AR-15 ASAL Free Float Quad Rail

    Dirty Bird Industries

    MSRP: $145.95 - $185.95
    $130.95 - $166.95
    Dirty Bird AR-15 ASAL Free Float Quad Rail The Dirty Bird Free Float Quad Rail is a no-nonsense American Made rail system designed for versatility and simplicity. It features a monolithic top rail and is precision machined from 6061-T6 aluminum...
    MSRP: $145.95 - $185.95
    $130.95 - $166.95
    Qty in Cart: 0
    Price:
    MSRP: $145.95 - $185.95
    $130.95 - $166.95
    Subtotal:
  • Dirty Bird SBA4 Lower Build Kit

    Dirty Bird SBA4 Lower Build Kit

    Dirty Bird Industries

    MSRP: $219.95
    $209.95
    Dirty Bird SBA4 Lower Build Kit The Dirty Bird Industries SBA4 Lower Build Kit includes everything needed to finish your AR Pistol Lower Receiver using the ever popular SB Tactical SBA4 Stabilizing Brace. This kit includes the Dirty Bird...
    MSRP: $219.95
    $209.95
    Qty in Cart: 0
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    MSRP: $219.95
    $209.95
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  • DURAMAG Aluminum 5.56/.223 10/30 Magazine - Orange Follower

    DURAMAG Aluminum 5.56/.223 10/30 Magazine - Orange Follower

    Duramag

    MSRP: $19.70
    $13.95
    DURAMAG Aluminum 5.56/.223 10/30 Magazine - Orange Follower C-Products Defense .223/5.56 Aluminum AR-15 magazines take the age old tested design to another level. They use fully robotic welding that monitors the most important aspects of spot welding,...
    MSRP: $19.70
    $13.95
    Qty in Cart: 0
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    MSRP: $19.70
    $13.95
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  •  EOTech 512 Holographic Sight

    EOTech 512 Holographic Sight

    EOTech

    MSRP: $525.00
    $499.00
    EOTech 512 Holographic Sight The HWS 512™ is perfect for anyone who wants fast target acquisition, reliability, durability, and the anyplace availability of AA batteries without the need for night-vision compatibility. The 512 is our most...
    MSRP: $525.00
    $499.00
    Qty in Cart: 0
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    MSRP: $525.00
    $499.00
    Subtotal:
  • Ergo TDX-0 Flat Top Tact Deluxw Zero SureGrip

    Ergo TDX-0 Flat Top Tact Deluxe Zero SureGrip

    Ergo Grip

    MSRP: $39.99
    $36.95
    Ergo TDX-0 Flat Top Tact Deluxe Zero SureGrip ERGO's classic Tactical Deluxe Flat Top is now available in a zero angle grip. Designed for improved comfort and control on precision rifle chassis systems, AR-15/AR-10 platforms. The new grip puts your hand...
    MSRP: $39.99
    $36.95
    Qty in Cart: 0
    Price:
    MSRP: $39.99
    $36.95
    Subtotal:
  • Out of stock
    F-1 Firearm Modular AR 15 Grip

    F-1 Firearm Modular AR 15 Grip

    F-1 Firearms

    MSRP: $79.99
    $79.95
    F-1 Firearm Modular AR 15 Grip The F-1 Firearm Modular AR-15 Grip combines custom comfort, functionality, and style into one exceptional accessory. With a skeletonized and textured construction, this grip offers a unique and eye-catching design while...
    MSRP: $79.99
    $79.95
    Qty in Cart: 0
    Price:
    MSRP: $79.99
    $79.95
    Subtotal:
  • Out of stock
    F-1 Firearms DuraBolt AR 15 Bolt Carrier Group Assembly - Titanium Nitride

    F-1 Firearms DuraBolt AR 15 Bolt Carrier Group Assembly - Titanium Nitride

    F-1 Firearms

    MSRP: $275.00
    $264.95
    F-1 Firearms DuraBolt AR 15 Bolt Carrier Group Assembly - Titanium Nitride The F-1 Firearms DuraBolt AR 15 Bolt Carrier Group Assembly in Titanium Nitride (TiN) offers a premium and durable solution for AR15 enthusiasts. This full-auto-rated M16/M4 bolt...
    MSRP: $275.00
    $264.95
    Qty in Cart: 0
    Price:
    MSRP: $275.00
    $264.95
    Subtotal:
  • Out of stock
    Fab Defense F.A.B. Defense AK-47 Polymer Quad Rail Handguard

    F.A.B. Defense AK-47 Polymer Quad Rail Handguard

    Fab Defense

    MSRP: $75.00
    $69.95
    F.A.B. Defense AK-47 Polymer Quad Rail Handguard The AK-47 is a light and durable quad-rail polymer handguard system for the AK 47 platform. It enables four picatinny rails for mounting of reflex sights, foregrips, bipods or any other 1913...
    MSRP: $75.00
    $69.95
    Qty in Cart: 0
    Price:
    MSRP: $75.00
    $69.95
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  • Out of stock
     FailZero Nickel Boron Bolt Carrier Group

    FailZero EXO M16/4 Bolt Carrier Group - Nickel

    FailZero

    MSRP: $189.95
    $174.99
    FailZero EXO M16/4 Bolt Carrier Group - Nickel FailZero M16/M4 Bolt Carrier Group, No Hammer to guarantee your rifle performs in any situation. These Bolt Carrier Groups made by FailZero come fully-assembled for easy drop-in installation on most Mil-Spec...
    MSRP: $189.95
    $174.99
    Qty in Cart: 0
    Price:
    MSRP: $189.95
    $174.99
    Subtotal:
  • Out of stock
    FailZero M16/M4 Black Nitride Bolt Carrier Group

    FailZero M16/M4 Black Nitride Bolt Carrier Group

    MSRP: $119.99
    $119.95
    FailZero M16/M4 Black Nitride Bolt Carrier Group - No Hammer FailZero brings you the M16/M4 Bolt Carrier Group, the epitome of high-quality components and precise manufacturing, designed to elevate your firearm's performance. This product features no...
    MSRP: $119.99
    $119.95
    Qty in Cart: 0
    Price:
    MSRP: $119.99
    $119.95
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  • FAXON Faxon Firearms 7.5″ Government Profile 5.56 NATO Pistol-Length 4150 Black Nitride Barrel

    Faxon 7.5″ Government Profile 5.56 NATO Pistol-Length 4150 Black Nitride Barrel

    Faxon Firearms

    MSRP: $160.00
    $147.25
    Faxon 7.5″ Government Profile 5.56 NATO Pistol-Length 4150 Black Nitride Barrel Each Faxon Barrel goes through a battery of tests at each operation of fabrication until finished in Nitride and a thorough final inspection. Where all barrels are...
    MSRP: $160.00
    $147.25
    Qty in Cart: 0
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    MSRP: $160.00
    $147.25
    Subtotal:
  • Faxon Firearms 14.5" GUNNER 5.56 NATO Mid-Length 4150 Nitride / Melonite Barrel

    Faxon Firearms 14.5" GUNNER 5.56 NATO Mid-Length 4150 Nitride / Melonite Barrel

    Faxon Firearms

    MSRP: $170.00
    $156.40
    Faxon Firearms 14.5" GUNNER 5.56 NATO Mid-Length 4150 Nitride / Melonite Barrel The Gunner profile is a blend of two of the best performing profiles of all time, Gov’t and Pencil. Proving that every once and awhile, the Government can do something...
    MSRP: $170.00
    $156.40
    Qty in Cart: 0
    Quantity:
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    MSRP: $170.00
    $156.40
    Subtotal:
  • Faxon Firearms 18" Big Gunner .308 WIN Rifle-Length Salt Bath Nitride 4150 Series Barrel

    Faxon Firearms 18" Big Gunner .308 WIN Rifle-Length Salt Bath Nitride 4150 Series Barrel

    Faxon Firearms

    MSRP: $249.00
    $229.95
    Faxon Firearms 18" Big Gunner .308 WIN Rifle-Length Salt Bath Nitride 4150 Series Barrel Faxon's .308 continue our fantastic barrel-making with a bit more punch. We've updated our previous Medium-Taper profile taking into account customer feedback,...
    MSRP: $249.00
    $229.95
    Qty in Cart: 0
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    MSRP: $249.00
    $229.95
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  • Out of stock
    Faxon Firearms AR-10 3 Screw .875 Low Profile Gas Block

    Faxon Firearms AR-10 3 Screw .875 Low Profile Gas Block

    Faxon Firearms

    MSRP: $39.99
    $36.95
    Faxon Firearms AR-10 3 Screw .875 Low Profile Gas Block The Faxon Gas Block, AR-10 Height, 3 Screw, QPQ, .875 is a top-quality gas block designed for use with AR-10 rifles. Made from high-quality steel and finished with a QPQ coating, this gas block is...
    MSRP: $39.99
    $36.95
    Qty in Cart: 0
    Price:
    MSRP: $39.99
    $36.95
    Subtotal:
  • Out of stock
    Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver

    Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver

    Faxon Firearms

    MSRP: $425.00
    $391.00
    Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver The Faxon Firearms Ascent 10.5" 5.56 Barrel Upper Receiver is the ultimate solution for those seeking to upgrade or build a high-performance AR-15. This premium upper receiver assembly includes a...
    MSRP: $425.00
    $391.00
    Qty in Cart: 0
    Price:
    MSRP: $425.00
    $391.00
    Subtotal:
  • On Sale
    Fortis Manufacturing Fortis Manufacturing 12.9 Night Rail Free Float Rail system - Keymod, AR 15 Parts

    Fortis Manufacturing 12.9" Night Railâ„¢ Free Float Rail system - Keymod

    Fortis Manufacturing

    MSRP: $242.95
    Now: $199.95
    Was: $230.95
    Fortis Manufacturing 12.9" Night Rail™ Free Float Rail system - Keymod Fortis wanted to design a handguard that was easy to install, but also to be able to mount with a full 360 degrees of contact. Their new patent pending, two piece barrel nut is...
    MSRP: $242.95
    Now: $199.95
    Was: $230.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $242.95
    Now: $199.95
    Was: $230.95
    Subtotal:
  • Fortis Torque Pistol Grip - Carbon Fiber

    Fortis Torque Pistol Grip - Carbon Fiber

    Fortis Manufacturing

    MSRP: $119.95
    $104.95
    Fortis Torque Pistol Grip - Carbon Fiber Save weight and improve ergonomics with the Torque pistol grip! The skeletonized design reduces weight and features a wide, comfortable shape that place your hand in the optimal position on the trigger for maximum...
    MSRP: $119.95
    $104.95
    Qty in Cart: 0
    Price:
    MSRP: $119.95
    $104.95
    Subtotal:
  • Forward Controls Design 6315 Stoner 63 LMG Style Compensator w/ Keymo Mount - 1/2-28

    Forward Controls Design 6315 Stoner 63 LMG Style Compensator w/ Keymo Mount - 1/2-28

    Forward Controls Design

    MSRP: $105.00
    $99.95
    Forward Controls Design 6315 Stoner 63 LMG Style Compensator w/ Keymo Mount - 1/2-28 Effective flash suppression, reduced muzzle rise, an integrated wire cutter feature, and a slick, no frills design come together in the 6315. Machined from incredibly...
    MSRP: $105.00
    $99.95
    Qty in Cart: 0
    Quantity:
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    MSRP: $105.00
    $99.95
    Subtotal:
  • Forward Controls Design GBU Gas Block Utility Tool

    Forward Controls Design GBU Gas Block Utility Tool

    Forward Controls Design

    MSRP: $75.00
    $71.95
    Forward Controls Design GBU Gas Block Utility Tool GBU, or Gas Block Utility, was created to provide a sturdy and compact platform for users to install / remove gas tube pins on low profile gas blocks, and install / remove gas block pin on the barrel...
    MSRP: $75.00
    $71.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $75.00
    $71.95
    Subtotal:
  • Out of stock
    Forward Controls Design GSA-2 Short A2 Pistol Grip

    Forward Controls Design GSA-2 Short A2 Pistol Grip

    Forward Controls Design

    MSRP: $40.00
    $38.00
    Forward Controls Design GSA-2 Short A2 Pistol Grip GSA (Grip, Short) is a slightly shortened pistol grip with improved ergonomics for the AR15/M16 platform, it's designed primarily for SBRs. Shortened by 0.375", GS retains the A2's 25 degree angle...
    MSRP: $40.00
    $38.00
    Qty in Cart: 0
    Price:
    MSRP: $40.00
    $38.00
    Subtotal:
  • Out of stock
    Forward Controls Design HTP Hammer and Trigger Pins

    Forward Controls Design HTP Hammer and Trigger Pins

    Forward Controls Design

    MSRP: $18.00
    $17.25
    Forward Controls Design HTP Hammer and Trigger Pins Forward Controls Design's HTP (Hammer and Trigger Pins) are crafted from durable 17-4 stainless steel and subjected to a H900 heat treatment, these pins are then coated with DLC for superior protection...
    MSRP: $18.00
    $17.25
    Qty in Cart: 0
    Price:
    MSRP: $18.00
    $17.25
    Subtotal:
  • Forward Controls Design MCF G10 Dimpled M-LOK Rail Cover

    Forward Controls Design MCF G10 Dimpled M-LOK Rail Cover

    Forward Controls Design

    MSRP: $35.00 - $38.00
    $32.95 - $35.95
    Forward Controls Design MCF G10 Dimpled M-LOK Rail Cover Enhanced Grip and Versatility for Your M-LOK Rail System The Forward Controls Design MCF (MLOK Cover, Forward Controls) is a collaboration with Railscales, engineered for maximum grip and...
    MSRP: $35.00 - $38.00
    $32.95 - $35.95
    Qty in Cart: 0
    Price:
    MSRP: $35.00 - $38.00
    $32.95 - $35.95
    Subtotal:
  • Foxtrot Mike 45 Cal P.C.C. Extra Heavy Buffer - 8.5oz

    Foxtrot Mike 45 Cal P.C.C. Extra Heavy Buffer - 8.5oz

    Foxtrot Mike

    MSRP: $45.00
    $39.00
    Foxtrot Mike 45 Cal P.C.C. Extra Heavy Buffer - 8.5oz The Foxtrot Mike Products FM-45 Extra Heavy PCC Buffer is the perfect weight to ensure reliable feeding of any blowback operated PCC. At 4.125 inches overall length, it requires no spacer and helps...
    MSRP: $45.00
    $39.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $45.00
    $39.00
    Subtotal:
  • Foxtrot Mike 9MM Micro Muzzle Brake - 1/2x36

    Foxtrot Mike 9MM Micro Muzzle Brake - 1/2x36

    Foxtrot Mike

    MSRP: $45.00
    $39.00
    Foxtrot Mike 9MM Micro Muzzle Brake - 1/2x36 Foxtrot Mike's Premium Micro 9mm Muzzle Brake re-directs the concussive blast of 9mm P.C.C.'s to counteract recoiland muzzle rise. By reducing gasses at the 2:00 and 10:00, it helps create a negative recoil...
    MSRP: $45.00
    $39.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $45.00
    $39.00
    Subtotal:
  • Out of stock
    Geissele AR-15/M4 Reaction Rod Upper Assembly Tool

    Geissele AR-15/M4 Reaction Rod Upper Assembly Tool

    Geissele Automatics

    $99.00
    Geissele AR-15/M4 Reaction Rod Upper Assembly Tool The AR-15/M4 Reaction Rod makes the removal and installation of barrels, flash hiders, gas blocks and hand guards much easier and simpler. The Reaction Rod is designed to be gripped in a bench vise so...
    $99.00
    Qty in Cart: 0
    Price:
    $99.00
    Subtotal:
  • Geissele AR10/SR25 Reaction Rod

    Geissele AR10/SR25 Reaction Rod

    Geissele Automatics

    $199.00
    Geissele AR10/SR25 Reaction Rod The Geissele Reaction Rod is a tool that securely holds an upper receiver assembly for maintenance and assembly work. By gripping the Reaction Rod in a bench vice either horizontally or vertically, the upper receiver can...
    $199.00
    Qty in Cart: 0
    Quantity:
    Price:
    $199.00
    Subtotal:
  • Geissele Automatics MK16 M-LOK AR-15 Super Modular Rail

    Geissele Automatics MK16 M-LOK AR-15 Super Modular Rail

    Geissele Automatics

    $325.00 - $350.00
    Geissele Automatics MK16 M-LOK AR-15 Super Modular Rail The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the...
    $325.00 - $350.00
    Qty in Cart: 0
    Price:
    $325.00 - $350.00
    Subtotal:
  • Geissele Automatics Super Duty MOD1 AR-15 Complete Upper Receiver Carbine - Black - 14.5"

    Geissele Automatics Super Duty MOD1 AR-15 Complete Upper Receiver Carbine - Black - 14.5"

    Geissele Automatics

    $1,260.00
    Geissele Automatics Super Duty MOD1 AR-15 Complete Upper Receiver Carbine - Black - 14.5" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 14.5” complete upper...
    $1,260.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,260.00
    Subtotal:
  • Out of stock
    Geissele Automatics USASOC URG-I Near Clone AR-15 Pistol Upper Receiver Assembly

    Geissele Automatics USASOC URG-I Near Clone AR-15 Pistol Upper Receiver Assembly

    Geissele Automatics

    $1,450.00
    Geissele Automatics USASOC URG-I Near Clone AR-15 Pistol Upper Receiver Assembly For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the...
    $1,450.00
    Qty in Cart: 0
    Price:
    $1,450.00
    Subtotal:
  • Geissele Mil-Spec Lower Parts Kit (Less Trigger, With Grip)

    Geissele Mil-Spec Lower Parts Kit (Less Trigger, With Grip)

    Geissele Automatics

    $65.00
    Geissele Mil-Spec Lower Parts Kit (Less Trigger, With Grip) The Geissele Standard Lower Parts Kit includes all the internal parts necessary to complete or rebuild your lower receiver and grip. This quality mil-spec kit features an improved safety detent...
    $65.00
    Qty in Cart: 0
    Quantity:
    Price:
    $65.00
    Subtotal:
  • Out of stock
    Geissele Roll Pin Starter Tool for Gas Block

    Geissele Roll Pin Starter Tool for Gas Block

    Geissele Automatics

    $12.50
    Geissele Roll Pin Starter Tool for Gas Block The hole in the tip of the Gas Block Roll Pin Tool is sized so that the roll pin will need to be pressed into the tool first (the roll pin will not just slide in). Stand the roll pin on a hard surface and tap...
    $12.50
    Qty in Cart: 0
    Price:
    $12.50
    Subtotal:
  • Out of stock
    Geissele Automatics Super Dynamic Combat Trigger

    Geissele Super Dynamic Combat (SD-C)

    Geissele Automatics

    $245.00
    Geissele Automatics Super Dynamic Combat Trigger The Geissele Automatics Super Dynamic-Combat (SD-C) Trigger is a highly dependable, performance-enhancing addition to your firearm. Crafted with the operator in mind, this rugged, non-adjustable combat...
    $245.00
    Qty in Cart: 0
    Price:
    $245.00
    Subtotal:
  • Out of stock
    Geissele Super Stainless Magazine Catch

    Geissele Super Stainless Magazine Catch

    Geissele Automatics

    $21.00
    Geissele Super Stainless Magazine Catch The Geissele Mag Catch Assembly is a stronger replacement for the mil-spec mag catch. It’s made from Stainless Steel for its longevity and anti-rusting properties. This item is also found on the Super...
    $21.00
    Qty in Cart: 0
    Price:
    $21.00
    Subtotal:
  • Geissele Ultra Duty Lower Parts Kit

    Geissele Ultra Duty Lower Parts Kit

    Geissele Automatics

    $145.00 - $150.00
    Geissele Ultra Duty Lower Parts Kit The Geissele Ultra Duty Lower Parts Kit is made for the most demanding operators and includes all the internal parts necessary to complete or rebuild your lower receiver. This top-tier LPK features proprietary Geissele...
    $145.00 - $150.00
    Qty in Cart: 0
    Price:
    $145.00 - $150.00
    Subtotal:
  • Out of stock
    Geissele Ultra Duty Magazine Release Button

    Geissele Ultra Duty Magazine Release Button

    Geissele Automatics

    $12.00
    Geissele Ultra Duty Magazine Release Button The Geissele Ultra Duty Mag Release Button features a texture matching our Maritime Bolt Catch, allowing you to complete the high end look of your carbine. This item is also found on the Super...
    $12.00
    Qty in Cart: 0
    Price:
    $12.00
    Subtotal:
  • Geissele Ultra Precision 5-Axis Trigger Guard

    Geissele Ultra Precision 5-Axis Trigger Guard

    Geissele Automatics

    $35.00 - $40.00
    Geissele Ultra Precision 5-Axis Trigger Guard The Geissele Ultra Precision™ 5 Axis Trigger Guard is meticulously machined from 7075-T6 aluminum. By employing 5-Axis machining technology the GA team is able to reach every surface of the trigger...
    $35.00 - $40.00
    Qty in Cart: 0
    Price:
    $35.00 - $40.00
    Subtotal:
  • Out of stock
    Glock 19 OEM Barrel

    Glock 19 OEM Barrel

    Glock

    MSRP: $250.00
    $224.95
    Glock 19 OEM Barrel The Glock 19 OEM Barrel is a top-quality firearm component designed with the precision and reliability that Glock is renowned for. It features Glock's unique polygonal barrel rifling, which reduces wear and tear on the barrel and...
    MSRP: $250.00
    $224.95
    Qty in Cart: 0
    Price:
    MSRP: $250.00
    $224.95
    Subtotal:
  • Out of stock
    Glock 23 OEM Factory 10 RD Magazine .40 SandW

    Glock 23 OEM Factory 10 RD Magazine .40 S&W

    Glock

    $29.95
    Glock 23 OEM Factory 10 RD Magazine .40 S&W Each GLOCK magazine is constructed from a hardened steel insert encased in high tech polymer to protect the magazine and prevent deformation, even when dropped from a great height. The high quality spring...
    $29.95
    Qty in Cart: 0
    Price:
    $29.95
    Subtotal:
  • Out of stock
    Glock Modular Backstrap Replacement Kit - G19/23 Gen 4

    Glock Modular Backstrap Replacement Kit - G19/23 Gen 4

    Glock

    MSRP: $32.00
    $25.95
    Glock Modular Backstrap Replacement Kit - Gen 4 Crafted with an unwavering commitment to precision, the Glock OEM Gen 4 Modular Backstrap Replacement Kit brings unparalleled personalization to your Glock. It's specifically engineered for Glock models...
    MSRP: $32.00
    $25.95
    Qty in Cart: 0
    Price:
    MSRP: $32.00
    $25.95
    Subtotal:
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