Gun parts are used to repair, maintain, upgrade, customize, or complete a firearm - AR-platform firearms, and other common firearm setups, including replacement parts, build parts, small parts, stocks, grips, triggers, muzzle devices, pins, springs, rails, mounts, and other firearm-related components.
The right parts can help keep a firearm serviceable, easier to use, and better suited for training, home defense, hunting, recreational shooting, or general ownership.
Before ordering, always confirm the part is compatible with your firearm’s make, model, caliber, generation, and configuration. Some parts may require proper tools, installation knowledge, or a qualified gunsmith for safe and correct installation.
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BATTLEARMS AR15/M4 Takedown and Pivot Pin Detent – Precision Fit for Secure Pin Retention
Battle Arms Development$1.00The AR15/M4 Takedown and Pivot Pin Detent is a vital small part that plays a big role in the function of your rifle. This precision-machined detent retains the front and rear takedown pins securely in place, ensuring your upper and lower receivers stay... -
BATTLEARMS AR15/M16 Magazine Catch Spring
Battle Arms Development$3.00AR15/M16 Mil-Spec Magazine Catch Spring -
BATTLEARMS Ultralight Chevron Carbon Fiber Pistol Grip
Battle Arms Development$179.95SKU: BAD-CF-PG UPC: 810033785566 Weight: 1.27 oz (36gram) Compatibility: AR15-AR10 Platforms and Variants Material: 35-50 Carbon Fiber (Does not include Grip Screw) -
BATTLEARMS BAD-ATG Adjustable Tactical Grip
Battle Arms Development$25.00BAD-ATG™ (Adjustable Tactical Grip) AR15/M16/AR308 Grip Easily adjustable, with the included hex key to the most popular angles (17, 25, & 33 degrees) using the Patent Pending adjustable angle mechanism. The ability to change angles of the grip... -
BATTLEARMS Lightweight Butt Stock for SABERTUBE
Battle Arms Development$79.95Lightweight Butt Stock (BAD-LBS) for the SABERTUBE® Receiver Extension/Buffer Tube Features: Clean, beautiful, no-nonsense, minimalistic design Precision CNC from billet 7075T6 Aircraft Grade Aluminum MilSpec Type III Class 2 Hard Anodized... -
BATTLEARMS AR15/M16 Style Receiver End Plate
Battle Arms Development$5.99AR15/M16 Receiver End Plate Mil-spec. receiver extension end plate. For use on AR15 carbines with an adjustable stock. Made in the USA -
BATTLEARMS AR15/M16 Receiver Extension Nut (Castle Nut)
Battle Arms Development$7.00AR15/M16 Receiver Extension Lock Nut Mil-spec. receiver extension lock nut (castle nut) for use on AR15 carbines with an adjustable stock. Perfect for your new build or as a direct replacement for worn out parts. Made in the USA. -
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BATTLEARMS VERT PDW Stock System - Buffer Tube Wrench
Battle Arms Development$10.00VERT® PDW Stock System - Buffer Tube Wrench -
BATTLEARMS VERT V2 Cheek Rest Screw – Kydex
Battle Arms Development$0.75The VERT V2 Cheek Rest Screw is a precision replacement and upgrade component designed specifically for Kydex cheek rests on rifles and tactical stocks. Built for durability and ease of use, this screw ensures a secure and reliable mount for your cheek... -
BATTLEARMS SABERTUBE QD Lightweight Stock Kit
Battle Arms Development$199.95SABERTUBE® Mid Length or Rifle Length QD End Plate Lightweight Stock Combo Includes: SABERTUBE® Lightweight Receiver Extension/Buffer Tube, End Plate Model for the BAD-LBS Lightweight Butt Stock. Features: Midlength 8 1/4in or Rifle 9... -
BATTLEARMS VERT CSS Compact Stock System - Cheek Rest - Kydex Carbon Fiber Pattern
Battle Arms Development$25.00Replacement Kydex Cheek Rest for Vert CSS Stock -
BATTLEARMS VERT PDW Stock System - Cheek Rest - Kydex Carbon Fiber Pattern
Battle Arms Development$25.00Replacement Cheek Rest for VERT PDW Stock Monolithic Lower -
BATTLEARMS BAD-CSS/PDW Tailhook Adapter
Battle Arms Development$80.00VERT® Stock System Adapter to convert for use with GearHead Works Tailhook Mod 1 Does not include: Tailhook Mod 1 Screws Cheek Rest Adapter Only. Installation instructions. Remove two screws from stock piece, remove the buttstock... -
BATTLEARMS AR15/M16 Carbine Buffer Spring
Battle Arms Development$4.00The AR15/M16 Carbine Buffer Spring is a Mil-Spec replacement recoil spring designed for carbine-length receiver extensions. This essential component ensures proper cycling, smooth operation, and reliable performance in AR-platform rifles and carbines... -
Battle Arms Carbine Buffer Standard Weight 3.0 oz / AR15 / M16
Battle Arms Development$16.00Battle Arms Development Carbine Buffer Standard Weight 3.0 oz Silver for AR15 / M16 The Battle Arms Development AR15-BUFFER-C Carbine Buffer is a mil-spec standard-weight buffer built for AR15 and M16 carbines with a collapsible stock. Finished in silver... -
BATTLEARMS VERT Heavy Extra Power Buffer Spring - Upgraded Spring / AR-15 / AR9 / 300 BLK
Battle Arms Development$26.50Optimize your AR platform's performance with the Battle Arms VERT Heavy Extra Power Buffer Spring. Engineered for superior recoil control and reliable cycling, this upgraded spring is ideal for AR-15, AR9, and .300 BLK configurations, especially those... -
BATTLEARMS VERT V2 PDW Buffer Kit (9mm) – Dedicated PCC (AR9)
Battle Arms Development$150.00VERT V2 PDW Buffer Kit (9mm) – Dedicated PCC (AR9) The Battle Arms Development VERT® V2 PDW Buffer Kit (9mm) is a dedicated buffer system engineered for 9mm PCC / AR9 platforms using the VERT Compact Stock System or the BAD-PDW Monolithic... -
BATTLEARMS SABERTUBE Quick Disconnect End Plate (AR15/M16/M4/AR9/AR10)
Battle Arms Development$34.99Battle Arms SABERTUBE Quick Disconnect End Plate (AR15/M16/M4/AR9/AR10) The Battle Arms Development SABERTUBE Quick Disconnect End Plate is a premium, purpose-built end plate designed to add a clean, secure sling attachment point to your rifle or pistol... -
BATTLEARMS Mil-Spec 6 Position Carbine Buffer Tube
Battle Arms Development$39.95Mil-Spec Receiver Extension / Buffer Tube, 6 Position Features: Mil-Spec Carbine Length Receiver Extension / Buffer Tube 6 Positions Precision CNC from 7075T6 Aircraft Grade Aluminum Impact Forging Mil-Spec Type III Hard Anodized Black Made in the... -
BATTLEARMS SABERTUBE Lightweight Pistol Length Buffer Tube Kit
Battle Arms Development$124.95SABERTUBE Lightweight Pistol Length Buffer Tube Kit – AR15 / M16 / M4 / AR9 The Battle Arms Development SABERTUBE® Lightweight Pistol Length Buffer Tube Kit is a compact, purpose-built receiver extension and QD end plate combo designed for AR... -
BATTLEARMS SABERTUBE Direct to Receiver Mid-Length Pistol
Battle Arms Development$99.99SABERTUBE® DIRECT TO RECEIVER PISTOL Receiver Extension Includes: (1) SABERTUBE® DIRECT TO RECEIVER *PISTOL* Receiver Extension/Buffer Tube COMPATIBLE WITH GEAR HEAD WORKS TAILHOOK MOD 1 with Stepped down OD (outside diameter) at end... -
BATTLEARMS Mil-Spec 6 Position Carbine Buffer Tube OD Green
Battle Arms Development$49.95Mil-Spec Receiver Extension / Buffer Tube, 6 Position Features: Mil-Spec Carbine Length Receiver Extension / Buffer Tube 6 Positions Precision CNC from 7075T6 Aircraft Grade Aluminum Impact Forging Anodized OD Green Color Made in the USA -
BATTLEARMS Mil-Spec AR15 LR308 Single Stage Trigger Kit
Battle Arms Development$45.95Single Stage Mil-Spec Trigger Includes Phosphate Mil-Spec Trigger Rounded Hammer Disconnector Trigger Spring Hammer Spring Disconnector Springs Trigger and Hammer Pins with a Black Oxide Finish -
BATTLEARMS EKG AK Trigger Kit
Battle Arms Development$39.95BAD-EKG... Powering the Kalashnikov heart within you. Features: Maximum compatibility with most standard production AK patterned firearms. Enhanced hammer geometry to eliminate that "hump" feel when charging the AK, to give you that smooth custom... -
Polished Nickel Teflon Enhanced Trigger Kit
Battle Arms Development$49.99nhanced Nickel Teflon trigger assembly features smooth,precision-machined engagement surfaces and Nickel Teflon coating that removes the grittiness found in mil-spec triggers and provides a cleaner "break”. This single-stage trigger is functionally... -
Adjustable Friction-less Trigger
Battle Arms Development$268.00Battle Arms Development Special Edition Trigger by Triggertech Repeatable User Adjustable Trigger Pull from ~2 to 5 lbs with click feedback indications Frictionless Release Technology (FRT)™ Zero Creep Short Two Stage... -
Enhanced Complete Lower Parts Kit
Battle Arms Development$135.00BAD-LPK-PKX Enhanced Complete Lower Parts Kit Consisting of the following: BAD-EBC-IC Enhanced Bolt Catch Cost friendly alternative Lightweight but Robust Design 0.39oz Compatible with Norgon Ambi-Catch Without Interference Raised "T-Shaped" Heel... -
3 Piece Enhanced Lower Parts Kit
Battle Arms Development$35.00BAD-LPK-PK3 3 Piece Enhanced Lower Parts Kit Consisting of the following: Enhanced Bolt Catch (BAD-EBC-IC), which is a cost-friendly alternative, without sacrificing the quality for your AR build! The AR-15 Cast Enhanced Bolt Catch is 8620 heat... -
BATTLE ARMS BAD-QRRTP - Quick Release Rear Takedown Pin
Battle Arms Development$30.00BAD-QRRTP Quick Release Rear Takedown Pin Features: Dual Function Easy Pull Head CNC Machined Comes with Detent and Spring Made in the USA! Patent US10101107B1 -
BATTLEARMS BAD-EPS-308 (Enhanced Pin Set) LR-308/SR-25/AR308
Battle Arms Development$29.95BATTLEARMS – BAD-EPS Enhanced Takedown & Pivot Pin Set (AR15/M16/M4/AR9) Item: BAD-EPS SKU: BAD-EPS UPC: 810033780394 Platform Compatibility: AR15 / M16 / M4 / AR9 The BATTLEARMS BAD-EPS® Enhanced Takedown and Pivot Pin Set upgrades one... -
BATTLEARMS AR15/M16 Takedown & Pivot Pin Detent Spring – AR15 Mil-Spec Replacement Part
Battle Arms Development$0.75Replace worn or lost detent springs in your AR15 or M16 rifle with this high-quality Mil-Spec spring from Battle Arms Development. Precision-engineered for reliability and durability, it’s perfect for custom builds, repairs, or routine maintenance... -
BATTLEARMS BAD-EPS FDE Aluminum Enhanced Takedown and Pivot Pin Set
Battle Arms Development$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with... -
BATTLEARMS Green Aluminum Enhanced Takedown / Pivot Pin Set
Battle Arms Development$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with... -
BATTLEARMS BAD-EPS Purple Aluminum Enhanced Takedown and Pivot Pin Set
Battle Arms Development$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower... -
BATTLEARMS BAD-EPS Blue Aluminum Enhanced Takedown and Pivot Pin Set
Battle Arms Development$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower... -
BATTLEARMS BATTLE ARMS BAD-EPS Enhanced Takedown and Pivot Pin Set AR15
Battle Arms Development$29.00Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The set consists of the Enhanced Take-down Pin (BAD-ETP) and Enhanced Pivot Pin (BAD-EPP). Precision Swiss CNC machined from round stock steel bars,... -
BATTLEARMS Cast 308 BAD-EBC Enhanced Bolt Catch LR308
Battle Arms Development$9.00BAD-EMC-IC Enhanced Magazine Catch Process: Investment Cast (Same Process as Mil-Spec) Material: 8620 Heat Treated Steel Finish: Black Phosphate Finish Construction: One Piece Engineering (Not Two-Piece) Design: Lightweight Fluted... -
Cast 308 BAD-EBC Enhanced Bolt Catch LR308
Battle Arms Development$19.95The Battle Arms Development EBC® (enhanced bolt catch) was designed to be a drop-in upgrade to the existing MIL-SPEC bolt catch. Due to the design of this bolt catch, it provides not only a better purchase on the release portion but the lock... -
Billet BAD-EBC Enhanced Bolt Catch AR15
Battle Arms Development$42.00The Battle arms development EBC (enhanced bolt catch) was designed to be a drop-in upgrade to the existing MIL-SPEC bolt catch. Due to the design of this bolt catch, it provides not only a better purchase on the release portion but the lock portion of...
