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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            MAGPUL CTR® Mil Spec Stock (FDE)
Magpul
MSRP: $64.95$61.70MAGPUL CTR® Mil Spec Stock (FDE) The Magpul CTR (Compact/Type Restricted) - Mil-Spec model is a drop-in replacement buttstock for AR15 / M16 carbines using Mil-Spec sized receiver extension tubes. Designed for light, fast action, the...MSRP: $64.95$61.70 - 
            
            MFT 10 Round Polymer Magazine
Mission First Tactical
MSRP: $12.99$10.95MFT 10 Round Polymer Magazine 10 round 5.56 NATO magazine engineered as an enhancement of the standard STANAG design. A flared floor plate aids in extraction and handling. The floor plate provides drop protection, has a paint pen dot matrix area for...MSRP: $12.99$10.95 - 
            Out of stock
            BCMGUNFIGHTER QD End Plate
Bravo Company USA Inc.
MSRP: $20.00$17.95BCMGUNFIGHTER QD End Plate The BCMGUNFIGHTER QD End Plate is manufactured in the United States from steel and easily accommodates staking. It features a Ambidextrous QD sling mount that that fits most QD Sling Swivels on the market. Features Steel...MSRP: $20.00$17.95 - 
            Out of stock
            CMMG AR 15 HD Extended Pivot and Takedown Pin Kit
CMMG
MSRP: $19.95$18.95CMMG AR15 HD Extended Pivot and Takedown Pin Kit Unlike standard mil-spec AR-15 takedown pins, these enhanced pins from CMMG are machined with a divot and an increased overall length, providing a surface that allows for fast, easy disassembly without...MSRP: $19.95$18.95 - 
            
            Strike Industries AR15 Overmolded Enhanced Pistol Grip 15° (FDE)
Strike Industries
MSRP: $23.95$21.95Strike Industries AR15 Overmolded Enhanced Pistol Grip 15° (FDE) The Strike Industries AR Overmolded Enhanced Pistol Grip comes with a rubberized texture to suit any shooter’s needs; 15 degrees. Just like the Strike Industries Enhanced...MSRP: $23.95$21.95 - 
            Out of stock
            AR 15 Lower Parts Kit With 2 Stage Trigger
Black Rifle Depot
MSRP: $128.95$104.95AR 15 Lower Parts Kit With 2 Stage Trigger Black Rifle Depot's AR 15 Lower Parts Kit with 2 stage trigger is assembled with top tier quality parts. The 2 stage trigger allows for better trigger control and follow up shots with a 1.5LB 1st stage...MSRP: $128.95$104.95 - 
            Out of stock
            AR 15 Lower Parts Kit with Magpul MOE Grip - Black
Black Rifle Depot
MSRP: $69.95$59.95AR 15 Lower Parts Kit With Magpul MOE Grip - Black The Black Rifle Depot AR 15 Lower Parts Kit LPK 2 is manufactured from top quality materials and sourced from several of the leading manufactures for firearms parts. So if you are...MSRP: $69.95$59.95 - 
            
            AR-15 Lower Build Kit - Tan Stock
Black Rifle Depot
MSRP: $124.95$79.95AR-15 Lower Build Kit - Tan Stock The Black Rifle Depot AR 15 Lower Build Kit in Tan is the standard LE - Law Enforcement design and features a lightweight snag free frame with sling loop attachment. The small frame makes and features make...MSRP: $124.95$79.95 - 
            
            Battle Arms BAD-ASS-PRO Professional Ambidextrous Safety Selector Reversible 90/60
Battle Arms Development
MSRP: $45.00$39.95Battle Arms BAD-ASS-PRO Professional Ambidextrous Safety Selector Reversible 90/60 The best just got better! From the inventors of the very first fully modular, patented, ambidextrous safety selector for the AR-15 platform, Battle Arms Development is...MSRP: $45.00$39.95 - 
            Out of stock
            KAK AR-15 H2 Heavy Buffer
KAK Industry
MSRP: $25.00$23.95KAK AR-15 H2 Heavy Buffer A common and inexpensive upgrade, swapping a standard carbine buffer for a heavier H2 Buffer can be the remedy for an overgassed system and reduce the felt recoil when firing. The KAK H2 AR-15 buffer body is machined from...MSRP: $25.00$23.95 - 
            
            Dirty Bird 2-Stage Trigger Group
Dirty Bird Industries
MSRP: $99.95 - $149.95$89.95 - $134.95Dirty Bird 2-Stage Trigger Group For shooters seeking a combination of value, reliability, and precision, the Dirty Bird 2-Stage Trigger Group checks all the boxes. This trigger assembly leverages a two-stage fire control design that has been proven in...MSRP: $99.95 - $149.95$89.95 - $134.95 - 
            
            KAK AR-15 / LR-308 A2 Standard Rifle Buffer Tube
KAK Industry
$20.00KAK AR-15 / LR-308 A2 Standard Rifle Buffer Tube For use in rifle stocks. Can be used for AR-15 or LR-308 with the correct buffer. Hard black anodized finish.$20.00 - 
            Out of stock
            POF Enhanced Universal AR 15 Bolt Catch
POF USA
MSRP: $19.99$18.95POF Enhanced Universal AR 15 Bolt Catch The new enhanced universal bolt catch is just another example of POF's continuation of innovation. The large angled bolt catch pad allows for faster bolt catch activation to clear the rifle. It also contains a...MSRP: $19.99$18.95 - 
            
            Battle Arms Investment Cast Enhanced Bolt Catch AR15
Battle Arms Development
MSRP: $15.00$13.95Battle Arms Investment Cast Enhanced Bolt Catch AR15 Battle Arms Development, Inc. is a design, research, and development firm focusing on small arms design including firearm components, tools, gauges, accessories, and complete weapon systems. All B.A.D...MSRP: $15.00$13.95 - 
            Out of stock
            KAK Industry A5 Style 9-Position Buffer Tube
KAK Industry
MSRP: $39.95$34.95KAK Industry A5 Style 9-Position Buffer Tube NOTE- Our A5 Style Buffer Tube is only compatible with A5 Style Buffers and Rifle Length AR15 buffer springs Material- High Quality 7075 Finished- Black Military Hard Coat...MSRP: $39.95$34.95 - 
            
            Magpul MOE Lower Build Kit For AR-15 - Black
Magpul
MSRP: $179.95$134.95Magpul MOE® Lower Build Kit For AR 15 (Black) The Magpul Industries AR 15 Lower Build Kit is the perfect choice for those looking to upgrade their firearm. This comprehensive kit includes Magpul Industries stock and grip, as well as a buffer kit, and...MSRP: $179.95$134.95 - 
            
            SOPMOD Stock Kit - Black
Black Rifle Depot
MSRP: $109.40$69.95SOPMOD Stock Kit - Black The SOPMOD AR 15 Stock Kit from Black Rifle Depot is the ultimate upgrade solution for your AR 15. The kit comes complete with a top-of-the-line SOPMOD AR 15 Stock, designed with watertight compartments for battery storage and a...MSRP: $109.40$69.95 - 
            
            Unrivaled Armory 2-Stage Dead Blow Duty Buffer System
Unrivaled Armory
$179.00Unrivaled Armory 2-Stage Dead Blow Duty Buffer System A full mass version of our championship winning competition buffer. Same reciprocating mass as standard carbine buffer (3.2oz) Ideal for “duty” or “tactical” rifles Imbedded...$179.00 - 
            
            AR-15 Trigger Guard Assembly
Black Rifle Depot
MSRP: $7.50$4.95AR-15 Trigger Guard Assembly The OEM AR 15 Trigger Guard Assembly from Black Rifle Depot is a US made Mil-Spec product that is a must have for any AR builder that wants lightweight replacement parts in his bug-out bag. Remember...MSRP: $7.50$4.95 - 
            Out of stock
            Hera Arms AR 15 H3L 10-Round Magazine (Black)
Hera Arms
$12.90Hera Arms AR 15 H3L 10-Round Magazine (Black) The HERA USA H3L magazines are designed and built from high quality impact resistant polymer. These magazines are made with quality followers, springs and floorplates. HERA magazines are...$12.90 - 
            
            Rogers Super-Stoc Mil-Spec Carbine Buttstock w/ Build-in QD Base
Rogers
MSRP: $59.95$44.95Rogers Super-Stoc Mil-Spec Carbine Buttstock w/ Build-in QD Base The Rogers Super-Stoc Deluxe rifle stock “RSS” is the ultimate refinement in AR/M4 stock technology. The patented cam-lock system completely removes any slop or play inherent...MSRP: $59.95$44.95 - 
            Out of stock
            UTG Pro Ambidextrous Pistol Grip - Black
Leapers / UTG
MSRP: $16.97$14.97UTG Pro Ambidextrous Pistol Grip - Black This is the UTG Pro ambidextrous pistol grip for the AR 15. The ergonomic symmetrical palm swells reduce fatigue and improve handling comfort. Its nonslip textured beavertail" palm swells and finger grooves...MSRP: $16.97$14.97 - 
            
            AR 15 Hammer Spring
Black Rifle Depot
MSRP: $2.00$1.75AR 15 Hammer Spring The OEM Black Rifle Depot replacement hammer spring fits the OEM kits BRD sells. It replaces any damaged, broken, or lost parts during your build. Grab an extra one for your bag or shop today. Remember that Black Rifle Depot is your...MSRP: $2.00$1.75 - 
            
            DURAMAG Stainless Steel 28rd 7.62x39 Magazine - Black
Duramag
MSRP: $28.30$24.95DURAMAG Stainless Steel 28rd 7.62x39 Magazine - Black CPD Magazine AR-15 7.62X39 28RD Blackened Stainless Steel Features Width: 5.3500 Finish: Black Matte Height: 1.2000 Length: 11.7000 Caliber: 7.62X39 Capacity: 28 Rounds Material: Stainless...MSRP: $28.30$24.95 - 
            
            Magpul MOE Grip (Gray)
Magpul
MSRP: $20.95$19.90Magpul MOE Grip (Gray) MAGPUL MOE Grip for AR15/M16 is a quick drop-in upgrade to the standard AR15 or M16 rifle model. The texturing on the MOE AR15 Gun Grip from Magpul Industries provides improved ergonomics and handling over...MSRP: $20.95$19.90 - 
            
            Retro A1 Pistol Grip for AR 15
Luth-AR
MSRP: $14.95$13.95Luth-AR A1 Pistol Grip Black A1 Style Pistol Grip made of Dupont Zytel 30% glass filled nylon. This is the grip only. Screw and washer must be purchased separately.MSRP: $14.95$13.95 - 
            
            UTG PRO AR15 S1 Ops Ready 6 Position Stock (BLK)
Leapers / UTG
MSRP: $39.97$34.97UTG PRO AR15 S1 Ops Ready 6 Position Stock The UTG AR 15 Ops Ready S1 Mil-Spec Polymer Stock in Black is a high quality upgrade for your AR platform build. It has six positions for ease of use. You can count on the quality and construction from every...MSRP: $39.97$34.97 - 
            Out of stock
            Magpul MOE Trigger Guard (FDE)
Magpul
MSRP: $8.95$8.50Magpul MOE Trigger Guard (FDE) The Magpul Polymer Trigger Guard in Flat Dark Earth is here at Black Rifle Depot. It is a great upgrade for your custom build. Remember it's the little details that make all the difference. Features Drop In...MSRP: $8.95$8.50 - 
            
            UTG Windowed Polymer 30 Round AR 15 Magazine
Leapers / UTG
MSRP: $14.97$11.97UTG Windowed Polymer 30 Round AR 15 Magazine Lightweight, durable, and reliable are exactly what you should look for in a magazine. Look no further than the UTG windowed polymer magazine! This excellent magazine is built from high-strength...MSRP: $14.97$11.97 - 
            Out of stock
            CMMG A1 AR 15 Stock Kit
CMMG
$99.95A1 AR 15 Stock Kit The CMMG A1 AR 15 Stock Kit has the true retro look of the original M16A1 Rifle. These AR 15 Stock kits use a rifle length AR 15 Buffer Tube and Rifle length spring for a smoother shooting rifle. Each kit features a...$99.95 - 
            
            DURAMAG 30-Round AR-15 Magazine 7.62x39mm
Duramag
MSRP: $29.30$19.99DURAMAG 30-Round AR-15 Magazine 7.62x39mm DURAMAG designs stainless steel magazines to meet the needs of today's combat conditions. These stainless steel magazines are extremely durable and dependable, and routinely outperform the mil-spec...MSRP: $29.30$19.99 - 
            Out of stock
            ODIN Works Adjustable Buffer Heavy
Odin Works
MSRP: $49.00$46.95ODIN Works Adjustable Buffer Heavy The ODIN Works Adjustable Buffer lite is a perfect way to give your next build as much customization as possible to fit the shooter. It comes with different size weights to allow you to create different variations...MSRP: $49.00$46.95 - 
            
            Wilson Combat AR 15 Extended Bolt Catch
Wilson Combat
MSRP: $32.48$31.95Wilson Combat AR 15 Extended Oversized Bolt Catch The oversized bolt release is designed to assist with the fastest possible reloads with your tactical rifle. Fully serrated and CNC machined out of bar stock steel for maximum durability, the bolt...MSRP: $32.48$31.95 - 
            
            Aero Precision Billet Trigger Guard w/ Logo
Aero Precision
MSRP: $29.00$27.95Aero Precision Billet Trigger Guard w/Logo This Aero Precision Billet Trigger guard is an upgrade for your AR 15 or AR 10 Build. Their new design features a sleek profile and hard engraved Aero Precision "A" logo and installs with 3 button...MSRP: $29.00$27.95 - 
            Out of stock
            Armaspec Gun Builders Stainless AR 15 Lower Parts Kit
Armaspec
MSRP: $79.99$71.99Armaspec Superlight Gun Builders Stainless LPK .223/5.56 Armaspec Superlight Stainless Steel Gun Builder’s Lower Parts Kit, less Trigger Group & Grip for .223/5.56. If you are looking for a high-end gun builder’s kit, then this one...MSRP: $79.99$71.99 - 
            
            Geissele Maritime Bolt Catch
Geissele Automatics
$29.00Geissele Maritime Bolt Catch Enhanced Bolt Catch for Improved Functionality and Control The Geissele Maritime Bolt Catch is engineered to improve the functionality and usability of the M16/M4 Carbine platform, with features tailored for military...$29.00 - 
            
            Magpul MOE® Mil Spec Stock (Gray)
Magpul
MSRP: $44.95$42.70Magpul MOE® Mil Spec Stock (Gray) The MOE Carbine Stock - Mil-Spec model (Magpul Original Equipment) is a drop-in replacement buttstock for AR15/M16 carbines using Mil-Spec sized receiver extension tubes. Designed for light, fast...MSRP: $44.95$42.70 - 
            
            Strike Industries Ultra Light Pivot Takedown Pins - OD Green
Strike Industries
MSRP: $17.95$15.95Strike Industries Ultra Light Pivot Takedown Pins - OD Green Strike Industries products are designed by shooting experts for the shooting sportsman.For those chasing the ultimate in lightweight builds, Strike Industries Ultra Light Pivot / Takedown Pins...MSRP: $17.95$15.95 - 
            
            BCMGUNFIGHTER Stock - MOD 0
Bravo Company USA Inc.
$56.95 - $58.95BCMGUNFIGHTER Stock - MOD 0 The Strongest Lightweight Polymer Stock for Your Mil-Spec Build. The BCMGUNFIGHTER Stock – MOD 0 from Bravo Company is designed to be the strongest lightweight polymer stock available for your mil-spec receiver extension...$56.95 - $58.95 - 
            
            Global Ordnance AR-15 30Rd Steel 5.56/.223 Magazine - FDE
Global Ordnance
MSRP: $13.99$12.99Global Ordnance AR-15 30Rd Steel 5.56/.223 Magazine - FDE Steel Construction Great For Long Term Storage Red Anti-Tilt Follower Made in Korea FDE Finish 30 Round CapacityMSRP: $13.99$12.99