AR-15, AR-10, and M16 parts are used for building, repairing, upgrading, and maintaining compatible rifle platforms across a wide range of configurations and applications. They can include barrels, handguards, triggers, controls, upper and lower parts, gas system components, stocks, grips, and other essential pieces that support fit, function, and overall rifle performance. Different parts serve different roles depending on the platform, build goal, and intended use. This category includes AR-15, AR-10, and M16 parts built for compatibility, dependable function, and practical everyday performance.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Stocks
- AR-15+ Grips
- AR-15 Buffer Tubes
- AR-15 Bolt Catch
- AR-15 BCGs / Bolts
- AR-15 Charging Handles
- AR-15 Safety Selectors
- AR-15 Hand Stops
- AR-15 Forward Assist
- AR-15 Ejection Port / Parts
- AR-15 Handguards / Rails
- AR-15 Barrels
- AR-15 Parts / Kits
- AR-15 Gas System Parts
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Products List
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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$26.99The 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 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$51.99Leupold 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$29.99Leupold 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... -
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 AR15/M16 Buffer H – Carbine Buffer / 3.8 OZ
Battle Arms Development$35.00AR15/M16 Buffer H – Carbine Buffer (H Weight) Brand: Battle Arms Development, Inc.Item: AR15-BUFFER-HUPC: 810033781124 The BATTLEARMS AR15/M16 Buffer H is a Mil-Spec carbine buffer intended for AR15/M16 platforms that use a carbine receiver... -
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 Billet Dedicated 9mm AR Lower Receiver — Glock Magazine Compatible
Battle Arms Development$289.00The Xiphos Billet Dedicated 9mm AR Lower Receiver is a purpose-built, Glock-magazine compatible lower engineered for reliable, repeatable 9mm builds. CNC machined from aircraft-grade billet aluminum and finished for durability, this lower accepts... -
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 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 AR9 LIGHTWEIGHT 9MM Dedicated PCC Upper Receiver — 7075-T6
Battle Arms Development$259.95Dedicated 9mm PCC upper built from 7075-T6 — lightweight, robust, and optimized for reliability with common 9mm blowback bolt carrier groups and PCC magazines. Key Features Forged & CNC machined from aerospace-grade 7075-T6... -
BATTLEARMS AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver
Battle Arms Development$359.95AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver Precision CNC billet 7075-T6 aluminum construction — ambidextrous controls, lightweight design, and built for full MIL-SPEC compatibility. Perfect for custom builds and... -
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 AR15/M16 Buffer – H3 Heavy Carbine / 4.5 OZ
Battle Arms Development$63.00AR15/M16 Buffer H3 – Carbine Buffer (H3 Weight 5.4 OZ) Brand: Battle Arms Development, Inc.Item: AR15-BUFFER-H3UPC: 810033781148 The BATTLEARMS AR15/M16 Buffer H3 is a Mil-Spec carbine buffer designed for AR15/M16 platforms that use a carbine... -
BATTLEARMS AR15/M16 Buffer – H2 Heavy Carbine / 4.65 OZ
Battle Arms Development$51.99Battle Arms AR15 H2 Buffer The AR15 H2 Buffer is a heavier-weight carbine buffer designed to help improve cycling, reduce felt recoil, and smooth out operation—especially in carbines that run over-gassed, suppressed setups, or short-barreled... -
BATTLEARMS 9MM Dedicated PCC Blowback Buffer – 7.2 oz (AR9)
Battle Arms Development$56.009MM Dedicated PCC Blowback Buffer – 7.2 oz (AR9) The Battle Arms Development 9MM Dedicated PCC Blowback Buffer (7.2 oz) is built specifically for 9mm AR / AR9 blowback platforms that require a heavier buffer to help control bolt speed, improve... -
BATTLEARMS VERT V2 PDW Buffer Assembly – 5.56/.300BLK AR15/M16/M4
Battle Arms Development$147.00Enhance your AR platform with the BATTLEARMS VERT V2 PDW Buffer Assembly, meticulously engineered for 5.56mm and .300 Blackout direct impingement systems. This ultra-compact buffer system is designed to optimize recoil management and ensure reliable... -
TROY AMBI SAFETY SELECTOR SEMI BLK
Troy$59.00The TROY AMBI SAFETY SELECTOR SEMI BLK is a rugged, ambidextrous safety selector built for AR-15 and AR-10 platforms in semi-automatic configurations. Featuring a sleek black finish and low-profile levers, this selector offers enhanced control and... -
SEEKINS SP SFTY SELECTOR KIT FDE
Seekins$59.00The SEEKINS SP SFTY SELECTOR KIT FDE is a high-performance ambidextrous safety selector designed for AR-15 and AR-10 rifles. Featuring a Flat Dark Earth anodized finish and modular lever options, it delivers both functionality and custom styling for... -
PHASE5 AMBI SAFETY SELECTOR RED
Phase 5 Weapon Systems$49.99The PHASE5 AMBI SAFETY SELECTOR RED is a high-performance, ambidextrous safety upgrade for AR-15 rifles, offering smooth operation, eye-catching red anodizing, and enhanced shooter control. Built for fast manipulation and visual distinction, it's ideal... -
TIMNEY 49'ER SAFETY SELECTOR BLK
Timney Triggers$80.99The TIMNEY 49'ER SAFETY SELECTOR BLK is a premium ambidextrous safety designed for AR-15 platforms, delivering fast, reliable, and low-profile control in a compact black anodized finish. Built by Timney Triggers, this selector offers smooth transitions...
