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.
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Odin Works 6mm ARC 18-inch Rifle Barrel with Tunable Gas Block and Gas Tube
$356.99Odin Works B6MM18ARCRTG 6mm ARC Stainless Steel The Odin Works 6mm ARC 18-inch rifle barrel is designed for precision and versatility in long-range shooting applications. Made from high-quality stainless steel, this barrel offers durability and... -
Franklin Armory Libertás Built Lower Receiver Model 0020009BLK Multi Caliber Firearm
$431.99Franklin Armory 0020009BLK Libertas Multi Aluminum Black Hardcoat Anodize The Franklin Armory Libertás Built Lower Receiver offers versatile compatibility with multi-caliber firearms, making it suitable for a variety of shooting applications. Featuring... -
TriggerTech Diamond AR-10 Trigger ARTSAB14NNF Straight Flat Black
$324.99TriggerTech ARTSAB14NNF Diamond Black Straight Flat Fits AR-10 The TriggerTech Diamond AR-10 trigger, model ARTSAB14NNF, offers exceptional precision and reliability for your firearm. Designed specifically for AR-10 platforms, this trigger features a... -
Timber Creek Outdoors TCOEKFDE Enforcer Complete Build Kit Flat Dark Earth
$599.99Timber Creek Outdoors TCOEKFDE Enforcer Complete Build Kit Flat Dark Earth -
Timber Creek Outdoor Inc Enforcer Complete AR-15 Build Kit
$599.99Timber Creek Outdoors TCOEKOD Enforcer Complete Build Kit OD Green The Timber Creek Outdoor Inc Enforcer Complete AR-15 Build Kit provides everything needed to assemble a high-performance AR-15. Designed for precision and durability, this kit features... -
Timber Creek Outdoors TCOEKT Enforcer Complete Build Kit Tungsten
$599.99Timber Creek Outdoors TCOEKT Enforcer Complete Build Kit Tungsten -
TriggerTech Diamond Tikka Right Hand Curved Trigger Lever Model TI0SRB02TNP
$324.99TriggerTech TI0SRB02TNP Diamond Black/Red Curved Lever Fits Tikka Right Hand The TriggerTech Diamond Tikka right hand curved trigger lever offers precise and smooth trigger control for Tikka rifles. Crafted for durability and performance, this... -
TriggerTech Diamond Tikka Right Hand Flat Lever Trigger TI0SRB02TNF
$324.99TriggerTech TI0SRB02TNF Diamond Black/Red Flat Lever Fits Tikka Right Hand The TriggerTech Diamond TI0SRB02TNF trigger is designed for Tikka rifles, offering precise and reliable performance with a flat lever for enhanced ergonomics. Crafted by... -
HK Picatinny Rail Mount for SP5, SP5K, and MP5 Pistols
$333.99HK 50226207 Picatinny Rail Black Aluminum Fits H&K SP5/SP5K/MP5 The HK Picatinny rail mount is designed specifically for the SP5, SP5K, and MP5 series pistols, providing a reliable platform for mounting optics and accessories. Crafted from durable... -
Kinetic Development Group KDG MRX5-MK2-020 FN SCAR Rail MREX MkII 6.5 inch Black
$332.99Kinetic Development Group MRX5-MK2-020 FN Scar Rail MREX MKII 6.5 Black The KDG MRX5-MK2-020 FN SCAR Rail MREX MkII 6.5 inch is a lightweight, precision-machined rail upgrade designed to enhance the modularity and functionality of your FN SCAR 16 or SCAR... -
Kinetic Development Group KDG MRX5-MK2-120 FN Scar Rail MREX MkII 6.5 FDE
$332.99Kinetic Development Group MRX5-MK2-120 FN Scar Rail MREX MKII 6.5 FDE The KDG MRX5-MK2-120 FN Scar Rail is a precision-machined, lightweight upgrade designed to enhance the modularity and ergonomics of your FN SCAR rifle. Constructed from durable 6061 T6... -
Kinetic Development Group MRX5-MK2-030 FN SCAR Rail MREX MKII 4.25 Black
$332.99KDG MRX5-MK2-030 FN SCAR RAIL MREX MKII 4.25 BLK Kinetic Development Group MRX5-MK2-030 FN SCAR Rail MREX MKII 4.25 Black is a precision-machined rail system designed for FN SCAR rifles by Kinetic Development Group. This MREX MKII rail measures 4.25... -
Kinetic Development Group MRX5-MK2-130 FN SCAR Rail MREX MKII 4.25 FDE
$332.99KDG MRX5-MK2-130 FN SCAR RAIL MREX MKII 4.25 FDE Kinetic Development Group MRX5-MK2-130 FN SCAR Rail MREX MKII 4.25 FDE is a precision firearm accessory designed for FN SCAR platforms. Manufactured by Kinetic Development Group, this MREX MKII rail... -
B&T Super APC Single-Stage Curved Trigger – Black
$478.99B&T Super APC Single-Stage Curved Trigger – Black The B&T Super APC Single-Stage Curved Trigger is designed to deliver a cleaner, more consistent trigger pull for shooters who want improved control and responsiveness from their platform... -
BATTLEARMS AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver
$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 Complete Rifle Lower — with B5 Bravo Stock
$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 AUTHORITY ELITE AMBI SET — Ambidextrous Billet Lower Receiver
$599.00Authority Ambidextrous Lightweight Billet Lower Receiver — 7075-T6 aircraft-grade aluminum Specifications Precision CNC from billet 7075-T6 aerospace aluminum Patent-pending lightweight design MIL-A-8625F, Type III, Class 2 hard-anodized black... -
BATTLEARMS BAD 556 AR15 BCG TITANIUM ARMORTI
$395.00BAD 556 AR15 BCG Titanium Armorti The BAD 556 AR15 BCG Titanium Armorti is a lightweight, high-performance bolt carrier group designed for elite shooters seeking the best in durability, smooth cycling, and advanced material technology... -
Q AR-15 TWO PIECE BCG
$350.00Q AR-15 TWO PIECE BCG – INNOVATIVE DESIGN FOR IMPROVED PERFORMANCE The Q AR-15 TWO PIECE BCG is a groundbreaking bolt carrier group that revolutionizes the AR-15 platform. Featuring a two-piece design, this BCG combines innovative engineering with... -
GUNFIGHTER Complete Lower Receiver Group – SPMD, Black | Mil-Spec AR15/M4 Platform
$525.00GUNFIGHTER COMPLETE LOWER RECEIVER GROUP – SPMD, BLACK | MIL-SPEC AR15/M4 PLATFORM The GUNFIGHTER Complete Lower Receiver Group – SPMD, Black is a high-quality, fully assembled lower receiver designed for AR15/M4 platforms. Crafted to... -
AERO Precision M5 AR-10 Complete Lower Receiver with MOE Grip – Black | .308 / 7.62 NATO
$464.99WATCHTOWER 15 BILLET COMPLETE LOWER RECEIVER – FDE | AR-15 MIL-SPEC READY PLATFORM The WATCHTOWER 15 Billet Complete Lower Receiver – FDE is a high-performance, precision-machined lower receiver designed for the AR-15 platform... -
AERO AR9 COMPLETE LOWER 9/40 BLK
$359.99AERO AR9 COMPLETE LOWER 9/40 BLK – PREMIUM LOWER RECEIVER FOR 9MM & 40 S&W AR BUILD The AERO AR9 COMPLETE LOWER 9/40 BLK is a high-quality, fully assembled lower receiver designed for 9mm and .40 S&W AR-9 builds. Manufactured by Aero... -
Spike's Tactical Stripped Upper/Lower Set – GAD FDE (AR-15 Platform)
$595.00Looking to build a complete AR-15 from the ground up? The Spike’s Tactical stripped upper and lower receiver set in GAD FDE delivers unmatched precision, durability, and sleek aesthetics in one perfectly matched package. Coated in Flat Dark Earth... -
Aero Precision M4E1 PRO Complete Lower Receiver 556/223 Kodiak Brown
$479.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand. Aero Precision, M4E1... -
Aero Precision M4E1 PRO Complete Lower Receiver 556/223 ODG
$479.99M4E1 PRO Complete Lower Receiver w/ MOE Grip & SL Carbine Stock – OD Green Anodized SKU: APAR600195Finish: OD Green AnodizedPlatform / Series: M4E1 / M4E1Receiver Extension: CarbineShipping: FFL Dealer RequiredMade in America: Yes The M4E1 PRO... -
Aero Precision M4E1 PRO Complete Lower Receiver 556/223 Black
$479.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand. Aero Precision, M4E1... -
Sons of Liberty Gun Works SCALPER Complete Lower Receiver Black
$570.00SOLGW M4 Milspec Complete Lower. Collaboration with Rogue American Apparel featuring the Scalper logo and selector markings. Forged from 7075-T6 Aluminum. M16 pocket cutout. Fully machined to remove flash markings from forging. Sons of Liberty Gun... -
AR15/M16 Full Auto Titanium BCG Bolt Carrier Group
$395.00BATTLEARMS™ AR15/M4 Titanium carrier w/ ArmorTI coating. This carrier fills the space of an M16 profile while reducing weight substantially. Aerospace surface treatment provides ultimate durability and wear resistance. Bolt material... -
WORKHORSE Complete Rifle Lower with B5 Bravo Stock
$399.99his complete WORKHORSE Rifle Lower with B5 Systems Bravo Stock is fully assembled and ready for your rifle upper.SKU: WH-LR-R-B5UPC: 810033783913Manufacturer: Battle Arms Development, Inc.Receiver Model: WORKHORSE® (Forged)Type: Semi-Auto... -
AUTHORITY ELITE AMBI SET
$599.00BAD556 Ambidextrous Lightweight Billet Lower Receiver in 7075-T6 Aircraft Grade Aluminum FEDERAL FIREARMS LICENSE REQUIRED **PLEASE REFER TO FOOTNOTES BEFORE PURCHASING [--We kindly ask that you order as instructed to avoid delays and/or... -
Battle Arms Authority Elite Ambidextrous AR15 Receiver Set – 7075-T6 Billet (Black Anodized)
$599.00Authority Elite Ambidextrous Lightweight Billet AR15 Upper and Lower Receiver Set is a premium matched set engineered for performance-driven rifle builds. Precision machined from 7075-T6 billet aluminum, this receiver set delivers exceptional strength,... -
Battle Arms Authority Elite Ambidextrous AR15 Lower Receiver – 7075-T6 Billet (Black Anodized)
$359.00Authority Elite Ambidextrous Lightweight Billet AR15 Lower Receiver is a premium foundation for high-performance AR15 builds. Precision machined from 7075-T6 billet aluminum, this lower receiver delivers exceptional strength, lightweight handling, and...
