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Ar 15 Parts

Best Sellers
  1. Ar-15/M16 Receiver Shims - Upper/Lower Receiver Shims
    Item#:
    713-000-108  
    Our Price:
    $15.99
    Description:
    Tempered stainless steel shims reduce play between receiver halves and hammer/trigger components for a tighter, smoother-functioning rifle. Helps restore accuracy and reduce noise in older rifles. Upper/Lower shims fit on the pivot pin to reduce side-to-side play between the upper and lower receiver. Mfg: Power Custom SPECS: Stainless steel, heat-hardened. Pak of 10.
  2. Ar-15 9mm Upper Receiver Assembly - A2 9mm Upper Receiver
    Item#:
    739-000-012  
    Our Price:
    $529.99
    Description:
    Easily Convert Your .223 AR Into A Fast-Shooting 9mm
  3. Ar-15/M16 Megalithic Upper Receiver - Ar15 Megalithic Upper Receiver
    Item#:
    100-015-583  
    Our Price:
    $636.00
    Description:
  4. Ar-15 80% Lower Receiver
    Item#:
    100-016-685  
    Our Price:
    $49.99
    Description:
    Anderson Manufacturing 80% Lower Receiver is forged from 7075-T6 aluminum, for a superior custom build.  80% receiver ships in the white, and requires completion by the user.   Operations left to be completed include fire control/trigger group milling, trigger pin, hammer pin, trigger slot, and the safety selector hole. This is not an FFL item and requires machining to complete. Returns will not be accepted once the receiver is modified in any way. Mfg: Anderson Manufacturing SPECS: Fits - AR-15 common components once completed.
  5. Ar-15 Upper Receiver Block
    Item#:
    231-000-157  
    Our Price:
    $40.99
    Description:
    Machined from tough, long-wearing nylon to hold upper receiver in a bench vise without fear of crushing, marking or scratching the finish. Fits inside stripped or barreled, carry handle and flattop receivers with .250'''' diameter pivot pins. Holds receivers at any angle for cleaning, or fitting sights and accessories. Models to fit standard AR-15 and DPMS AR-style .308 receivers. Mfg: Dpms SPECS: Nylon, white. AR-15 - 7” (17.8cm) long, 1¾” (4.5cm) wide, 2-7⁄8'''' (7.3cm) high. DPMS .308 - 7-3⁄8'''' (18.7cm) long, 1-7⁄8'''' (4.8cm) wide, 3” (7.6cm) high. Fits DPMS Panther AR-style .308 receivers.
  6. Ar-15 Upper Receiver Die - Ar-15 Upper Receiver Die 1 1/4-18"
    Item#:
    100-016-682  
    Our Price:
    $42.99
    Description:
    The innovative two-piece split rethreading die repairs damaged threads by repairing them from the top down, or bottom up.  Made for the 1 1/4-18 thread on the AR-15 upper receiver.  Eliminates cross threading. Mfg: Jme Innovations

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Ar 15 Used Parts

Related Items
  1. Ar-15 Lower Parts Kit - Ar-15 Lpk Complete
    Item#:
    100-500-156  
    Our Price:
    $56.99
    Description:
    ELG stands for 'Enhanced Longitudinal Grind'.At the heart of this kit stands the longitudinally-ground trigger, which is ground in-line with the direction of pull along the long axis of the trigger, and then finish-polished. This grind and polish provide two significant advantages over standard mil-spec kits.  First, a smoother pull with reduced grittiness and second, an enhanced basis for performing a trigger job. Mfg: Critical Capabilities Llc
  2. Ar-15 Lost Parts Kit - Ar15 Lost Parts Kit
    Item#:
    100-015-383  
    Our Price:
    $14.99
    Description:
    The first problem with AR-15 maintenance and gunsmithing work is the little spring or detent that pops out and falls into that black hole under the workbench! This Parts Kit - of all the most critical springs, detents, inserts and pins - will get your gun back to full function in short order. Kit includes: takedown detent (4), takedown springs (4), firing pin retaining pin (2), buffer retainer (2), buffer reatiner spring (2), safety detent (2), safety/ejector spring (2), extractor spring & buffer (2). Mfg: Bushmaster Firearms Int.Llc.
  3. Ar-15 Lower Parts Kit - Ar-15 Lpk No Trigger Guard Or Grip
    Item#:
    100-500-155  
    Our Price:
    $50.99
    Description:
    ELG stands for 'Enhanced Longitudinal Grind'.At the heart of this kit stands the longitudinally-ground trigger, which is ground in-line with the direction of pull along the long axis of the trigger, and then finish-polished. This grind and polish provide two significant advantages over standard mil-spec kits.  First, a smoother pull with reduced grittiness and second, an enhanced basis for performing a trigger job. Mfg: Critical Capabilities Llc
  4. Ar-15/M16 Firing Pin - Firing Pin, Ar-15
    Item#:
    231-000-005  
    Our Price:
    $7.99
    Description:
    Quality-made, original-style, chrome pin. Perfect for replacement of worn or damaged pins; great for building new rifles. Small collar fits all carriers. Mfg: Dpms SPECS: Steel, chrome. Fits AR-15 and M16.
  5. Ar-15/M16 Extractor
    Item#:
    851-111-002  
    Our Price:
    $59.99
    Description:
    High-quality, mil-spec components are hardened and heat treated, then hard-chrome plated. Reduces co-efficient of friction and makes the surface of the part almost impervious to wear. Mfg: Smith Enterprise SPECS: 8620 steel, hardened, hard-chrome plated, silver color. Magnetic particle inspected. Fits all AR-15 and M16 bolt carriers.
  6. Ar-15/M16 Lite Rail Ii - Ar15 Lite Rail Ii 10.0
    Item#:
    100-013-921  
    Our Price:
    $395.00
    Description:

Ammunition
  1. Lake City 5.56x45mm 62gr M855 W/M2a1 Can - 5.56mm Nato M855 Green Tip 62gr 500/Can
    Item#:
    105-000-589  
    Our Price:
    $199.99
    List Price: $214.99
    Description:
    Bulk-packed, new-manufactured 5.56x45mm NATO ammo has a 62-grain SS109 bullet with a green-painted steel "penetrator" tip over a lead core with a partial jacket. Loose/Bulk packaged in an MTM 45 cal. ammo can. Ammunition is Manufactured at the Lake City Army Ammunition Plant to Federal Cartridge Company specifications for military ammunition. The boxer-primed, reloadable brass case is headstamped with the Federal symbol and date of manufacture (military crimps should be removed before reloading). Water-resistant lacquer-sealed primer. Every cartridge is visually inspected before packing. For use only in rifles with chambers designed for 5.56x45mm ammunition. Some ranges pro Mfg: Federal
  2. M80 7.62 Nato 149gr Ball 500/Rds - Federal Ammo M80 7.62 Nato 149gr Ball 500/Bx
    Item#:
    100-010-474  
    Our Price:
    $369.99
    Description:
    Features: Ideal for target practice Accurate and reliable Available in a wide variety of calibers, including specialty loads Mfg: Federal
  3. Noveski Ammo 5.56x45mm Nato 60gr Ballistic Glow Tip - 5.56x45mm Nato 60gr Ballistic Glow Tip 20/Box
    Item#:
    749-014-882  
    Our Price:
    $29.99
    Description:
    John Noveske always dreamed of creating a line of high quality ammunition tuned to his rifles.  A line of ammunition so good that it squeezes every bit of performance out of a rifle while also providing maximum terminal ballistics downrange. John’s dream is now a reality. Noveske signature ammunition, manufactured by Nosler, is the ultimate option for semi-automatic ri fles. Loaded with a variety of Nosler bullets, Noveske ammunition is perfectly suited for the important mission at hand. Get the performance your rifle deserves. Loaded in Noveske headstamped brass Specifically tuned for semi-automatic firearms Black nickel plated components for stealthy-smoot Mfg: Nosler, Inc.
  4. Noveski Ammo 7.62x51mm Nato 110gr Varmageddon - 7.62x51mm Nato 110gr Varmageddon 20/Box
    Item#:
    749-014-885  
    Our Price:
    $34.99
    Description:
    John Noveske always dreamed of creating a line of high quality ammunition tuned to his rifles.  A line of ammunition so good that it squeezes every bit of performance out of a rifle while also providing maximum terminal ballistics downrange. John’s dream is now a reality. Noveske signature ammunition, manufactured by Nosler, is the ultimate option for semi-automatic ri fles. Loaded with a variety of Nosler bullets, Noveske ammunition is perfectly suited for the important mission at hand. Get the performance your rifle deserves. Loaded in Noveske headstamped brass Specifically tuned for semi-automatic firearms Black nickel plated components for stealthy-smoot Mfg: Nosler, Inc.
  5. X-Tac Ammo 5.56x45mm Nato 62gr Fmj Ammo Can - 5.56x45mm Nato 62gr Full Metal Jacket 400/Ammo Can
    Item#:
    105-000-531  
    Our Price:
    $172.99
    List Price: $199.99
    Description:
    When a serious threat arises and your life is on the line, that fraction of a second is the precise moment you can’t think about your ammunition. It’s that moment we think of every day. PMC X-TAC line of ammunition products is tried and tested by military and law enforcement around the world. Manufactured to the exacting specifications required by such organizations, X-TAC is the choice for the professional and enthusiast alike. Whether you are in uniform, on the job, at the range, in the field or in your home, PMC X-TAC gives you the confidence to make the right choice. It’s the way we want it. Mfg: Pmc Ammunition, Inc.
  6. Rifle Ammo 5.56x45mm Nato 62gr Fmj-Bt - 5.56x45mm Nato 62gr Full Metal Jacket 400/Case
    Item#:
    105-000-703  
    Our Price:
    $151.99
    List Price: $164.99
    Description:
    Aguila Centerfire Rifle Ammunition. The Aguila Advantage will hit dead center. A wide variety of calibers from the standard to the unique, Aguila offers high-quality rounds that cycle flawlessly with remarkable consistency in both velocity and accuracy. The use of Non-Corr Priming means reliable ignition in any weather condition. Mfg: Aguila

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Looking for Ar 15 Parts? Brownells.com carries the best selection at the lowest prices around. Our selection of 460 Ar 15 Parts and Ar 15 Used Parts represents the best of the best, on sale at prices from $0.99 to $4,195.00. As the number one online retailer of gun parts and gunsmith tools we are able to provide excellent customer service, great prices, and top quality merchandise, every day. We stand behind every item we sell, because we work with guns, too. We're happy to offer a 100% satisfaction guarantee - if you're not completely satisfied with your purchase, we'll make it right. So, browse our wide selection of Ar 15 Parts - we know you'll find what you're looking for. When you're ready to place an order, use our easy checkout or give us a call. Brownells.com is dedicated to helping you find the gun parts and gunsmith tools you need, so don't hesitate to drop us a line if you have any questions.