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 Rifle Length Nitrided Gas Tube GT-R6004
LANTAC USA$22.99LANTAC GT-R6004 RIFLE LENGTH NITRIDED GAS TUBE The LANTAC USA GT-R6004 rifle length nitrided gas tube is designed for reliable performance and durability in firearm builds. Crafted with high-quality materials, this gas tube ensures consistent operation... -
LANTAC USA GT-R6005 Rifle Length Nitride Gas System
LANTAC USA$22.99LANTAC GT-R6005 RIFLE LENGTH/1 NITRIDED GAS The LANTAC GT-R6005 rifle length gas system offers reliable performance and durability for precision firearm builds. Designed by LANTAC USA, this nitride-coated gas system enhances corrosion resistance and... -
LANTAC USA Low Profile .750 Gas Block
LANTAC USA$62.99LANTAC LA00243 LOW PROFILE .750 GAS BLOCK The LANTAC USA LA00243 Low Profile .750 Gas Block is designed for optimal performance and durability on modern AR-15 and similar firearms. Its low profile design ensures compatibility with a wide range of... -
LANTAC USA Ultimate Forward Assist Model 01-UP-UFA-S
LANTAC USA$38.99LANTAC 01-UP-UFA-S ULTIMATE FORWARD ASSIST The LANTAC USA Ultimate Forward Assist Model 01-UP-UFA-S is a precision-machined component designed to enhance your AR-15 or AR-10 firearm's reliability and performance. Crafted for durability and smooth... -
LANTAC USA RPS End Plate and Castle Nut
LANTAC USA$54.99LANTAC 01-UP-RPS RPS END PLATE & CASTLE NUT The LANTAC USA RPS End Plate and Castle Nut set provides high-quality components for your AR-15 or similar firearm build. Designed for durability and secure attachment, these parts ensure reliable... -
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... -
HK 81000336 USP40 CMPT V1 40S (2)12R 3.58
HK$1,159.99HK 81000336 USP V1 Compact 40 S&W 12+1 3.58" Black Polygonal Rifled Barrel, Black Serrated Slide, Black Polymer Frame, Black Polymer Grip, Ambidextrous The HK USP (Universal Self-loading Pistol) is an accurate and ultra-reliable handgun. It utilizes... -
WGUN 534178114 M94 SPORTER 3030 24 WAL
Winchester Guns$1,590.99Winchester Guns 534178114 Model 94 Sporter 30-30 Win Caliber with 8+1 Capacity, 24" Barrel, Brushed Polish Blued Metal Finish & Satin Black Walnut Fixed Straight Grip Stock Right Hand (Full Size) The Model 94 rifle is still a solid choice for big... -
WGUN 534178117 M94 SPORTER 3855 24 WAL
Winchester Guns$1,590.99Winchester Guns 534178117 Model 94 Sporter 38-55 Win Caliber with 8+1 Capacity, 24" Barrel, Brushed Polish Blued Metal Finish & Satin Black Walnut Fixed Straight Grip Stock Right Hand (Full Size) The Model 94 rifle is still a solid choice for big... -
WGUN 534175142 1886 SHORT 45-70 24 WAL
Winchester Guns$1,590.99Winchester Repeating Arms 534175142 Model 1886 Short Rifle Full Size 45-70 Gov 8+1 24" Brushed Polish Blued Sporter Barrel, Drilled & Tapped Steel Receiver, Grade I Satin Walnut Straight Grip Stock The Winchester Model 1886 changed the world of lever... -
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 Complete Black 16" Upper Receiver — Includes BCG & RACK-15-C Ambidextrous Charging Handle
Battle Arms Development$689.99The WORKHORSE Complete 16" AR15/M4 upper receiver delivers dependable, mil-spec performance in a finished, ready-to-install package. This Black configuration ships complete with a full-auto rated bolt carrier group (BCG) and the RACK-15-C ambidextrous... -
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 AUTHORITY ELITE AR15/M4 7.5" 300BLK Complete Billet Upper Receiver
Battle Arms Development$1,099.99Turn your build into a high-performance short-barrel 300 AAC Blackout (300BLK) rifle with this complete billet upper receiver assembly — including a precision 7.5" barrel, full-auto rated BCG, and the RACK-15 ambidextrous charging handle. Built... -
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...
