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Buy Guns & Gun Parts Online

RedBarnArmory.com is an online gun store specializing in AR15 parts and accessories, handguns, shotguns, rifles, USA manufactured magazines, ammunition, and more.

FREE SHIPPINGWith orders over $99*




Red Barn Armory.com Gift Card Battle Arms Development - Enhanced Magazine Release Button Sig Sauer 1911 Carry Spartan .45ACP - Red Barn Armory
Red Barn Armory Gift Card
Our Price: $0.01
In Stock
(2)
Battle Arms Development - Enhanced Magazine Release (EMR) Button
List Price: $7.00
Our Price: $6.75
In Stock
Sig Sauer 1911 Carry Spartan .45ACP Pistol 4.25"
List Price: $1,356.00
Our Price: $1,299.95
Sale Price: $1,099.99
In Stock
Mega Arms MATEN 308 Billet Upper/Lower Receiver Set-Ambi Red Barn Armory Low Profile .750" Adjustable Gas Block Radical Firearms / Seekins MCSR Upper Assembly
Mega Arms MATEN 308 AMBI Billet Upper / Lower / CH - Receiver Set
List Price: $608.00
Our Price: $599.99
Sale Price: $579.99
In Stock
(2)
Red Barn Armory - .750" Adjustable Low Profile Gas Block
Our Price: $39.99
Sale Price: $34.99
In Stock
RBA AR15 Upper Builder's Kit - 16" Carbine Red Barn Armory Build your own AR 15 LPK ATN X-Sight HD 5-18x Day/Night Riflescope - Smart HD Optics
RBA AR15 Upper Builder's Kit - 16" Carbine
List Price: $299.95
Our Price: $199.99
In Stock
(2)
ATN X-Sight HD 5-18x Day/Night Riflescope
List Price: $749.00
Our Price: $699.95
In Stock
(1)
Shop our online store for the best parts and firearms from reputable manufacturers including:

  • Glock
  • Smith & Wesson
  • Sig Sauer
  • FN Herstal
  • Springfield Armory
  • Remington
  • IWI Tavor
  • Ruger
  • Magpul
  • Fortis Mfg
  • Phase 5
  • KNS Precision
  • Radical Firearms
  • Yankee Hill Machine
  • Spike's Tactical and more!


Whether you’re looking for gun parts, handguns, shotguns, AR’s, or bullpup rifles, Red Barn Armory can help. When you buy firearms or gun parts online at Red Barn Armory, we’re always here to answer any questions you have to ensure that you get the parts or firearms that work for you. With us, it’s easy to buy guns online at reasonable prices, and we offer perks like FREE shipping on orders over $99! Shop and save on gun parts and accessories for your AR15 rifles and other firearms today!