Firearm Parts
Enhance your shooting experience with our extensive range of firearm accessories, designed to improve performance, safety, and customization for all types of firearms. From scopes, sights, and mounts to holsters, cleaning kits, and magazines, we offer high-quality products from trusted brands to suit every need. Whether you’re a competitive shooter, a hunting enthusiast, or a responsible gun owner, our accessories are perfect for upgrading your firearm's functionality and ensuring optimal maintenance. Shop now for competitive prices and fast shipping on essential firearm accessories.
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On Sale
AU Accu-Wedge for AR15/M4/M16 Rifles
AU
Now: $2.00Was: $4.95The AU Accu-Wedge will improve fit and eliminate the wobble between the upper and lower of your AR15/M4/M16 type rifle. This drop-in parts helps promote improved accuracy and allows the user to shoot...Now: $2.00Was: $4.95 -
On Sale
AU Ambidextrous AR15/M4 Magazine Release
AU
MSRP: $40.00Now: $20.00Was: $25.00Now both right and left hand shooters can get faster, easier reloads while keeping the rifle on target. A distinctive design that is the same size and configuration as the factory part; won't snag,...MSRP: $40.00Now: $20.00Was: $25.00 -
Colt M16/M4/AR15 Auto Sear Assembly
Colt
$15.00Factory Colt automatic sear assembly for M16/M4/AR15 rifles. Replacement parts, all NFA rules apply$15.00 -
On Sale
Schmid Ambidextrous Semi-Auto Safety Selector | Short/Long
Schmid Tool
Now: $15.00Was: $19.95Schmid semi-auto ambidextrous safety selector lever, is precision manufactured from high-grade steel to correct mil-spec dimensions. Fits AR15, M4 and 901 rifles. With one full size and one short...Now: $15.00Was: $19.95 -
On Sale
Colt M4 Commando 5.56mm Semi-Auto Lower Receiver Assembly
Colt
Now: $500.00Was: $699.00Proper "M4 Commando" model designation engraved on the lower receiver with LE prefix serial number (example: LE123456). Limited availability of government contract exclusive product. Factory Colt M4...Now: $500.00Was: $699.00 -
Colt M16/M4/AR15 Auto Sear Pin
Colt
$3.50Factory Colt pin for automatic sear assembly. Replacement parts, all NFA rules apply$3.50 -
On Sale
B5 Systems Bravo Mil-Spec AR15 Stock
B5 Systems
Now: $30.00Was: $62.00Bulk packaging, no retail packaging  The B5 Bravo stock is the minimalist’s pick for peak performance. Streamlined for users who want optimal performance without unnecessary bells and whistles, the...Now: $30.00Was: $62.00 -
On Sale
AU M16 / M4 3-Position Ambidextrous Safety Selector
AU
Now: $25.00Was: $34.95AU M16 / M4 3-Position Ambidextrous Safety SelectorDescription: Our Ambidextrous Safety Selector for M16/M4 select-fire rifles is an affordable solution for those seeking a tactical advantage...Now: $25.00Was: $34.95 -
On Sale
AU Enhanced Ambidextrous AR15/M4 Magazine Release
AU
MSRP: $65.00Now: $25.00Was: $40.00The Enhanced Ambidextrous Magazine Release was inspired by the controls found on HK MR556A4, HK416A5 and MR223A3 rifles. Designed to fit and function on AR15/M4 series of rifles assisting both right...MSRP: $65.00Now: $25.00Was: $40.00 -
On Sale
AU AR15 / AR10 Ambidextrous Safety Selector
AU
Now: $15.00Was: $29.95Our Ambidextrous Safety Selector for AR15/AR10 rifles is a high quality solution for those seeking a tactical advantage for their combat rifle. Whether replacing parts or building a new rifle, an...Now: $15.00Was: $29.95 -
On Sale
AU AR15/M4 Ambidextrous Sling Adapter End Plate
AU
MSRP: $12.00Now: $2.00Was: $5.95A replacement for the factory receiver end plate gives an AR15/M4 fitted with a collapsible buttstock a convenient, versatile, low-profile ambidextrous attachment point for clip-on, single-point...MSRP: $12.00Now: $2.00Was: $5.95 -
Out of Stock
Simunition 5.56mm Conversion Bolt Kit for AR15/M4/M16 Rifles
Simunition
$329.00The Simunition 5.56mm Conversion Kit is a drop in conversion intended for use with the AR15/M4/M16 and C7/C8 rifle series. The safe use of Simunition® 5.56 mm reduced energy Cartridges in the M16/M4...$329.00 -
On Sale
Schmid Ambidextrous Semi-Auto Safety Selector | Long/Long
Schmid Tool
Now: $15.00Was: $19.95Schmid semi-auto ambidextrous safety selector lever, is precision manufactured from high-grade steel to correct mil-spec dimensions. Fits AR15, M4 and 901 rifles. With two full size levers.Now: $15.00Was: $19.95 -
On Sale
Colt .22LR Drop-In Bolt Conversion Kit for AR15 w/ 3x 25-Round Magazines
Colt
$199.00 - $239.00Transform your .223/5.56mm AR platform rifle with the Colt .22 LR conversion bolt. Your trusted Colt rifle becomes a cost-effective training tool with this convenient drop-in conversion bolt...$199.00 - $239.00 -
On Sale
Colt AR15/M4 Carbine Collapsible Stock Assembly
Colt
Now: $42.00Was: $45.00Colt AR15/M4 Carbine Collapsible Stock Assembly P/N: SP64243 Factory Colt carbine collapsible stock assembly for M4 / AR-15 type rifles. Sliding mil-spec buttstock in black. Fits a mil-spec carbine...Now: $42.00Was: $45.00 -
Out of StockOn Sale
Knights 12" Free Float RAS MK12 Mod1 Quad Rail
Knights Armament
Now: $399.00Was: $419.00The Knights Armament Free Float RAS has more than proven itself on the battlefield; famously used on Naval Special Warfare Command's Mk12 Mod1 special purpose rifle. The RAS (Rail Adapter System)...Now: $399.00Was: $419.00 -
Colt M16/M4/AR15 Receiver End Plate
Colt
$6.95Factory Colt receiver end plate for M16/M4/AR15 type rifles.$6.95 -
Colt Ambidextrous Semi-Auto Safety Selector
Colt
$60.99Factory Colt semi-auto ambidextrous safety selector lever, fits AR15, M4 and 901 rifles. With one full size and one short lever.40083140002513036743$60.99 -
On Sale
Colt M16/M4/AR15 Magazine Release Button
Colt
Now: $3.00Was: $5.00Factory Colt M16/M4/AR15 magazine release button.Now: $3.00Was: $5.00 -
Colt M4/AR15 Receiver Extension Castle Nut
Colt
$9.95Colt M4/AR15 Receiver Extension Castle Nut P/N: 9390020 Supersedes: 64069, 62357 Factory Colt castle nut for the carbine receiver extension (buffer tube). Locks the extension and end plate to the...$9.95 -
Colt Carbine H2 Buffer
Colt
$49.99Factory Colt Carbine H2 Buffer containing two weights made from tungsten and one weight from steel. Heavy buffers reduce felt recoil as well as reduce the cyclic rate on full-auto rifles$49.99 -
Colt M4/AR15 Carbine Buffer Action Spring
Colt
$7.95Colt M4/AR15 Carbine Buffer Action Spring P/N: 9390022 Factory Colt carbine-length buffer / action spring. Goes in the carbine receiver extension and works with the carbine buffer. Features Genuine...$7.95 -
Out of StockOn Sale
Colt Carbine 5.56mm Semi-Auto Lower Receiver Assembly
Colt
Now: $419.00Was: $650.00ALL Semi-Auto Colt Rifle Receivers will be marked "Carbine" as of Q4 2020; furniture may vary. Description: Factory Colt complete lower receiver assembly to build your AR15, M16 or M4. Compatible...Now: $419.00Was: $650.00 -
Colt M16/M4/AR15 Firing Pin Retaining Pin
Colt
$3.75Colt M16/M4/AR15 Firing Pin Retaining Pin SKU: 8448504 (formerly SP62335) Factory Colt firing pin retaining pin for M16, M4, and AR-15 bolt carrier groups. This is the spring-steel split pin that...$3.75 -
Colt M16/M4/AR15 Bolt Gas Rings | Set of 3
Colt
$11.99This is a genuine factory Colt set of three bolt gas rings designed for M16, M4, and AR-15 type rifles. Manufactured to mil-spec standards, these gas rings provide a proper seal between the bolt and...$11.99 -
Out of Stock
Colt Carbine H3 Buffer
Colt
$59.99Factory Colt Carbine H3 Buffer containing three weights made from tungsten. Heavy buffers reduce felt recoil as well as reduce the cyclic rate on full-auto rifles.$59.99 -
Out of Stock
Colt IAR 5.56mm Upper Receiver Assembly | 11.5" Barrel
Colt
$1,799.00LIMITED RELEASE, LIMITED AVAILABILITY, WE WON'T BE SPECIAL ORDERING ANYMORE GOV PRODUCTION ITEMS FOR PUBLIC SALES WHEN THESE ARE GONE The Colt IAR6933CK Complete Upper Receiver Assembly is used on...$1,799.00 -
On Sale
Magpul BAD Lever Battery Assist Device for AR15/M4 Rifles
Magpul
MSRP: $29.95Now: $20.00Was: $28.45Developed from the operational experience of the Magpul Dynamics team, the Magpul B.A.D. Lever (Battery Assist Device) is designed to considerably improve the speed and efficiency of the AR15/M16...MSRP: $29.95Now: $20.00Was: $28.45 -
On Sale
CAA Collapsible AR15/M4 Mil-Spec Stock w/ Adjustable Cheek Rest
CAA
Now: $9.99Was: $54.99Includes Bonus Adjustable Cheek Rest ($22 Value) Description: The CAA CBS Collapsible Buttstock is a customizable buttstock for the AR15/M4/M16. This upgrade gives a strong and flexible firing...Now: $9.99Was: $54.99 -
On Sale
Colt AR15/M4 Pistol Grip
Colt
Now: $10.00Was: $12.00Factory Colt A2 Pistol Grip for M4/AR15 type rifles. Hardware not included and chalk finish varies dependent on Colt Manufacturing.Now: $10.00Was: $12.00 -
Colt M16/M4 Ambidextrous 3-Position Safety Selector
Colt
$60.99Factory Colt M16/M4 3-position ambidextrous safety selector lever, fits automatic and burst-fire M16, M4 and 901 rifles. With one full size and one short lever.400024400025400583$60.99 -
Out of StockOn Sale
Rifle Chamber Safety Flag
Now: $0.75Was: $0.99A common device used at shooting ranges to clearly display that your rifle's chamber is empty and safe. Used condition, like newNow: $0.75Was: $0.99 -
On Sale
Magpul MBUS Back-Up Folding Rear Sight
Magpul
MSRP: $57.95Now: $34.00Was: $55.05The Magpul MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail...MSRP: $57.95Now: $34.00Was: $55.05 -
Colt M16/M4/AR15 Auto Disconnect
Colt
$15.00Factory Colt auto disconnect for M16/M4/AR15 rifles. Replacement parts, all NFA rules apply$15.00 -
Out of StockOn Sale
Heckler & Koch MP5/HK94 A3 Retractable Stock
Heckler & Koch
Now: $499.00Was: $599.00Factory Heckler & Koch "A3" retractable stock for MP5/HK94 type rifles. 3-position stock adjusts to fit the user, from collapsed and fully extended positions. Fits: MP5 SP5 HK94Now: $499.00Was: $599.00 -
Colt Carbine Length Gas Tube for M4/AR15
Colt
$25.00This is a genuine factory Colt carbine-length gas tube designed for M4 and AR-15 style firearms. Constructed from stainless steel to mil-spec standards, it provides reliable gas system function for...$25.00 -
Out of Stock
Knights M16/AR15 Chrome Sand Cutter Bolt Carrier Assembly
Knights Armament
$349.00Factory Knights SR-15 / SR-16 chrome bolt carrier group assembly for your AR15, M16 or M4 is designed to exceed all Mil Spec standards, the hard chrome finish provides excellent resistance to use...$349.00 -
On Sale
AU Mil-Spec M16/M4/AR15 Magazine Catch/Release Spring
AU
Now: $0.99Was: $2.00AU's Mil-Spec M16/M4/AR15 magazine catch/release spring.Now: $0.99Was: $2.00 -
On Sale
AU Large Bolt Charging Handle for Benelli M4
AU
Now: $15.00Was: $29.95The bolt charging handle supplied by Benelli with their popular M4 tactical shotguns is far too small and often difficult to grasp in high paced scenarios. Failure to retract the bolt handle...Now: $15.00Was: $29.95 -
Out of StockOn Sale
Colt AR15 Complete Bolt Carrier Group Assembly - USED
Colt
Now: $99.00Was: $199.99Factory Colt complete bolt carrier group assembly for your AR15 or M4 is the only BCG manufactured to truly meet and exceed all Mil Spec standards. Compatible with semi-auto receivers. The bolt...Now: $99.00Was: $199.99