AR-15, M4, AR-10, and M16 parts include components for maintaining, repairing, upgrading, and customizing popular modern sporting rifle platforms. This category includes replacement parts, internal components, controls, small parts, hardware, and accessories designed for compatible rifle builds and configurations. Whether you are servicing a current rifle, completing a build, or upgrading performance and ergonomics, choosing the correct platform-specific parts helps ensure proper fit and dependable function.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Bolt Carrier Groups / BCG
- AR-15 Stocks
- AR-15 Grips
- AR-15 Buffer / Tubes
- AR-15 Bolt Catch
- AR -15 Magazine Catch
- AR-15 Charging Handles
- AR-15 Safety Selectors
- AR-15 Hand Stops
- AR-15 Forward Assist
- AR-15 Ejection Port Covers & Parts
- AR-15 Handguards & Rails
- AR-15 Barrels
- AR-15 Gas System Parts
- AR-15 Parts & Kits
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Products List
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LANTAC USA Ultimate Takedown Pin Set Titanium
LANTAC USA$44.99LANTAC 01-LP-UPS-TI ULTIMATE TAKEDOWN PIN SET TI The LANTAC USA 01-LP-UPS-TI is a high-quality titanium takedown pin set designed for precision and durability. Crafted for AR-15 and similar rifle platforms, this set offers a reliable upgrade for smooth... -
LANTAC USA Ultimate Takedown Pin Set in Tin
LANTAC USA$45.99LANTAC 01-LP-UPS-TIN ULTIMATE TAKEDOWN PIN SET TIN The LANTAC USA 01-LP-UPS-TIN is a high-quality takedown pin set designed for reliable firearm assembly and maintenance. Crafted for durability and precision, this set ensures smooth operation and easy... -
LANTAC USA Bolt Catch Pro 01-LP-BC-PRO Tactical Firearm Accessory
LANTAC USA$57.99LANTAC 01-LP-BC-PRO BOLT CATCH PRO The LANTAC USA Bolt Catch Pro 01-LP-BC-PRO is a high-performance upgrade designed for AR-15 style rifles. Engineered for durability and reliability, this bolt catch enhances firearm operation and ensures smooth cycling... -
DPMS Panther Arms Flat Polished Trigger Assembly for AR Rifles
DPMS PANTHER ARMS$39.99DPMS DP51655230958 PANTHER FANG FLAT POL TRIG ASSY The DPMS Panther Arms DP51655230958 Flat Polished Trigger Assembly offers a smooth and reliable trigger pull for enhanced shooting performance. Designed for AR-style rifles, this trigger assembly ensures... -
Timber CreeOutdoor Inc Enforcer 9-Inch Handguard M-LOK OD Green for Rifles
TIMBER CREEK OUTDOOR INC$143.99TIMBER ME9HGOD ENFORCER 9" HNDGRD MLOK ODG The Timber Creek Outdoor Inc Enforcer 9-inch handguard is designed for precision and durability, offering reliable performance for modern sporting rifles. Crafted with an OD green finish, this handguard... -
Caldwell AR-15 Brass Catcher – Wire Frame with Webbing Mount
Caldwell$17.99The Caldwell AR-15 Brass Catcher is a practical accessory designed to collect spent brass during shooting sessions. Ideal for reloaders and shooters who want to keep their shooting area clean, this brass catcher helps prevent lost casings while reducing... -
Wheeler Trigger Pull Scale – Precision Handgun Trigger Gauge
Wheeler$25.99The Wheeler Trigger Pull Scale is a precision tool designed to accurately measure trigger pull weight on firearms. Ideal for gunsmiths, competitive shooters, and firearm enthusiasts, this scale helps ensure triggers are properly adjusted for safe and... -
LEU 170903 D-POINT MNT KIT CZ75
Leupold$36.99Leupold 170903 DeltaPoint Pro Matte Black Steel CZ 75 Dovetail Mount This DeltaPoint Pro Dovetail Mount is designed to fit a CZ 75. The DP-Pro AR mount brings the red dot to the right height without adding a ton of weight or bulk. The DP-Pro Iron Sight... -
LEU 170906 D-POINT MNT KIT GLK
Leupold$35.99Leupold 170906 DeltaPoint Pro Matte Black Aluminum Compatible w/Glock Dovetail Mount The DeltaPoint Pro pistol sight is just as capable on an AR platform as it is on a handgun. This DeltaPoint Pro Dovetail Mount is designed to fit a Glock. -
LEU 170908 D-POINT MNT KIT SIG 226
Leupold$36.99Leupold 170908 DeltaPoint Pro Matte Black Steel Sig 226 Dovetail Mount This DeltaPoint Pro Dovetail Mount is designed to fit a Sig 226. The DP-Pro AR mount brings the red dot to the right height without adding a ton of weight or bulk. The DP-Pro Iron... -
LEU 170909 D-POINT MNT KIT SW MP
Leupold$50.99Leupold 170909 DeltaPoint Pro Matte Black Steel S&W M&P Dovetail Mount This DeltaPoint Pro Dovetail Mount is designed to fit a S&W MP. The DP-Pro AR mount brings the red dot to the right height without adding a ton of weight or bulk. The... -
LEU 170910 D-POINT MNT KIT SPG
Leupold$36.99Leupold 170910 DeltaPoint Pro Matte Black Steel Springfield Dovetail Mount This DeltaPoint Pro Dovetail Mount is designed to fit a Springfield. The DP-Pro AR mount brings the red dot to the right height without adding a ton of weight or bulk. The DP-Pro... -
LEU 170489 2 PC BASE RUG AMER RF MT
Leupold$24.99Leupold 170489 Standard Base Matte Black Ruger American RF Leupold steel Standard (STD) rings and bases are the most versatile of any mounting system we offer. This specific model fits a Ruger American RF (Rimfire) and is the perfect choice for standard... -
LEU 170358 DD 2 PC BASE 70 XPR MT
Leupold$28.99Leupold 170358 Dual Dovetail Base Set Matte Black Winchester XPR Leupold Dual Dovetail (DD) bases and rings are one of our strongest mount systems, designed for standard to magnum caliber rifles with high recoils. This model specifically fits a... -
LEU 120834 RIFLEMAN 1-PC SAV AXIS LA
Leupold$12.99Leupold 120834 Rifleman Matte Black Savage Axis Leupolds aluminum Rifleman mounts are an economical alternative to steel mounts, yet these rings and bases still provide the strength and accuracy you expect from Leupold. This model is designed to fit a... -
PRO COL03 MAG COLT GOVT 45ACP 8RD
ProMag$21.99ProMag COL03 Standard 8rd 45 ACP Fits 1911 Government Blued Steel This replacement or spare magazine is compatible with your 1911 Government. It is constructed of heat treated steel with injection molded mag follower and mag spring formed from chrome... -
PRO COLA4 MAG AR15 223 20RD STEEL
ProMag$17.99ProMag COLA4 Standard 20rd 223 Rem/5.56x45mm Fits AR-15 Blued Steel This replacement or spare magazine is compatible with your AR-15. It is constructed of heat treated steel with injection molded mag follower and mag spring formed from chrome silicone... -
BATTLEARMS BILLET 9MM BAD-EBC Enhanced Bolt Catch – AR9
Battle Arms Development$42.00BILLET 9MM BAD-EBC Enhanced Bolt Catch – AR9 Manufacturer: Battle Arms Development, Inc. Item: BAD-EBC-9MM SKU: BAD-EBC-9MM UPC: 810033781216 Platform: AR9 The Battle Arms Development BAD-EBC® 9MM Enhanced Bolt Catch is a premium drop-in... -
BATTLEARMS BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (FDE) | AR15/M16/M4/AR9
Battle Arms Development$29.95BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (FDE) | AR15/M16/M4/AR9 Brand: Battle Arms Development, Inc. Item: BAD-EPS-AL-FDE SKU: BAD-EPS-AL-FDE UPC: 810033784149 Upgrade your receiver with the Battle Arms Development BAD-EPS Aluminum... -
BATTLEARMS BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (ODG) | AR15/M16/M4/AR9
Battle Arms Development$29.95BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (ODG) | AR15/M16/M4/AR9 Brand: Battle Arms Development, Inc. Item: BAD-EPS-AL-ODG SKU: BAD-EPS-AL-ODG UPC: 810033784187 Give your AR build a clean, functional upgrade with the BAD-EPS Aluminum... -
BATTLEARMS BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (Red) | AR15/M16/M4/AR9
Battle Arms Development$29.95BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (Red) | AR15/M16/M4/AR9 Brand: Battle Arms Development, Inc. Item: BAD-EPS-AL-RED SKU: BAD-EPS-AL-RED UPC: 810033785559 Upgrade your AR build with the BAD-EPS Aluminum Enhanced Pin Set in Red... -
BATTLEARMS BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (Blue) | AR15/M16/M4/AR9
Battle Arms Development$29.95BAD-EPS Aluminum Enhanced Takedown & Pivot Pin Set (Blue) | AR15/M16/M4/AR9 Brand: Battle Arms Development, Inc. Item: BAD-EPS-AL-BLU SKU: BAD-EPS-AL-BLU UPC: 810033784514 Upgrade your AR build with the BAD-EPS Aluminum Enhanced Pin Set in Blue... -
BATTLEARMS BAD-EPS-308 Enhanced Pin Set (.308) | AR15/M16/M4 Platform
Battle Arms Development$34.95BAD-EPS-308 Enhanced Pin Set (.308) | AR15/M16/M4 Platform Item: BAD-EPS-308 SKU: BAD-EPS-308 UPC: 810033780424 The Battle Arms Development BAD-EPS-308 Enhanced Pin Set is a premium takedown and pivot pin upgrade engineered for AR-style receivers. The... -
BATTLEARMS BAD-EPS-Ti Enhanced Pin Set (Titanium – Black DLC) | AR15/M16/M4/AR9
Battle Arms Development$54.95BAD-EPS-Ti Enhanced Pin Set (Titanium – Black DLC) | AR15/M16/M4/AR9 Item: BAD-EPS-TI_BLACK_DLC_-_BLACK SKU: BAD-EPS-TI UPC: 810033780417 The Battle Arms Development BAD-EPS-Ti Enhanced Pin Set (Black DLC) is a premium takedown and pivot pin... -
BATTLEARMS BAD-EPS-TI Enhanced Titanium Pin Set | AR15/M16/M4/AR9
Battle Arms Development$49.95BAD-EPS-TI Enhanced Pin Set (Titanium – Clear / Natural Finish) | AR15/M16/M4/AR9 Item: BAD-EPS-TI SKU: BAD-EPS-TI UPC: 810033780400 Platform Compatibility: AR15 / M16 / M4 / AR9 Material: Grade 5 Titanium (Precision CNC Machined) Finish: Natural... -
BATTLEARMS Development Carbine Buffer H Weight 3.8 oz Silver for AR15 / M16
Battle Arms Development$51.99Battle Arms Development Carbine Buffer H Weight 3.8 oz Silver for AR15 / M16 The Battle Arms Development AR15-BUFFER-H Carbine Buffer is a mil-spec H-weight buffer built for AR15 and M16 carbines with a collapsible stock. Finished in silver and weighing... -
BATTLEARMS WORKHORSE AR15/M4 10.5" .223 Wylde Complete Upper Receiver – NO BCG or Charging Handle
Battle Arms Development$529.99The WORKHORSE AR15/M4 10.5" Complete Upper Receiver delivers unmatched reliability and precision performance in a compact configuration. Featuring a 10.5-inch .223 Wylde barrel, M-LOK® free-float handguard, and forged 7075-T6 aluminum receiver,... -
BATTLEARMS WORKHORSE BLEMISH — Forged Lower Receiver
Battle Arms Development$125.00The WORKHORSE Forged Lower Receiver — BLEMISH edition — delivers the strength and reliability of a forged lower at a discounted price due to minor cosmetic imperfections. Forged from high-strength aluminum and finished for durability, this... -
BATTLEARMS XIPHOS Lightweight Billet 9mm PCC Lower Receiver for Glock Magazines Black
Battle Arms Development$289.00Battle Arms Development XIPHOS Lightweight Billet 9mm PCC Lower Receiver for Glock Magazines Black The Battle Arms Development XIPHOS Lightweight Billet PCC Lower Receiver is built for 9mm blowback AR9-style builds that use Glock-pattern magazines... -
BATTLEARMS WORKHORSE AR15/M4 Forged Upper Receiver — OD Green Anodize
Battle Arms Development$120.00Forged 7075-T6 upper receiver with MIL-A-8625F Type III OD Green hard anodize — service-grade strength, optics-ready, and built for repeatable alignment with Mil-Spec components. Key Features Forged from 7075-T6 aircraft-grade aluminum for proven... -
BATTLEARMS WORKHORSE Heavy-duty AR15/M4 Forged Upper Receiver
Battle Arms Development$120.00Heavy-duty forged AR15/M4 upper receiver — precision machined for reliable alignment, rugged service use, and full Mil-Spec compatibility. Key Features Forged from 7075-T6 aircraft-grade aluminum for proven strength and durability Precision... -
BATTLEARMS Workhorse Forged 7075-T6 Stripped Lower Receiver ODG Anodized for AR15
Battle Arms Development$131.00Workhorse Forged 7075-T6 Stripped Lower Receiver ODG Anodized for AR15 The Workhorse Forged 7075-T6 Stripped Lower Receiver in ODG anodized finish is built for AR15 builders who want a strong, dependable foundation for a custom rifle or pistol build... -
BATTLEARMS WORKHORSE Forged Mil-Spec AR Lower Receiver
Battle Arms Development$125.00Heavy-duty forged lower receiver — built for longevity, reliability, and Mil-Spec compatibility. Perfect for duty, range, and competition builds. Key Features Forged from 7075-T6 aircraft-grade aluminum for superior strength Mil-Spec... -
BATTLEARMS AUTHORITY ELITE AR15/M4 Lightweight 7075-T6 Billet Upper Receiver
Battle Arms Development$259.95Lightweight 7075-T6 billet AR15/M4 upper — precision machined, optics-ready, and built for durability and drop-in compatibility with Mil-Spec components. Key Features Forged & CNC machined from aerospace-grade 7075-T6 aluminum Lightweight,... -
BATTLEARMS XIPHOS Lightweight Billet 9mm PCC Upper Receiver Black
Battle Arms Development$259.95Battle Arms Development XIPHOS Lightweight Billet 9mm PCC Upper Receiver Black The Battle Arms Development XIPHOS Dedicated PCC Upper Receiver is built for 9mm AR-style pistol caliber carbine builds that need a lightweight, durable, and clean-looking... -
BATTLEARMS WORKHORSE AR15 FORGED RECEIVER SET
Battle Arms Development$245.00The WORKHORSE AR15 FORGED RECEIVER SET is a matched upper and lower forged from MIL-SPEC 7075-T6 aluminum for builders, armorers, and professionals who demand rock-solid strength and repeatable accuracy. Precision CNC machining ensures tight tolerances... -
BATTLEARMS WORKHORSE FORGED RECEIVER SET - ODG
Battle Arms Development$245.00The WORKHORSE Forged Receiver Set – ODG combines rugged reliability with precision machining and a distinctive Olive Drab Green anodized finish. Designed for serious shooters, builders, and professionals, this matched upper and lower set provides... -
BATTLEARMS WORKHORSE Complete Rifle Lower — with B5 Bravo Stock
Battle Arms Development$399.99Fully assembled and ready for your rifle upper, the WORKHORSE® Complete Rifle Lower ships with a B5 Bravo adjustable stock and enhanced controls for fast, reliable operation. Product: WORKHORSE® Complete Rifle Lower — with B5 Bravo... -
BATTLEARMS AR15/M16/M4 Buffer Retainer / Detent
Battle Arms Development$2.50The BATTLEARMS AR15/M16/M4 Buffer Retainer / Detent is a precision-machined small part designed to hold the buffer and spring securely in place within the receiver extension. Essential for proper AR-platform operation, this component ensures smooth... -
BATTLEARMS Development H3 Buffer / AR15 / M16
Battle Arms Development$119.95Battle Arms Development H3 Buffer Silver for AR15 / M16 The Battle Arms Development AR15BUFFERH3 H3 Buffer is a practical upgrade for shooters building or tuning an AR15 or M16 platform for smoother operation and more controlled cycling. Finished in...
