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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.

Shop our online store for the best parts and firearms from reputable manufacturers including:

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

FREE SHIPPINGWith orders over $99*




Mega Arms MATEN 308 Billet Upper/Lower Receiver Set-Ambi Red Barn Armory Build your own AR 15 LPK
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)
Diamondhead V-RS "T" 15" Free Floating Handguard-BLK
List Price: $209.00
Our Price: $189.95
In Stock
(5)
RBA 16" AR15 5.56 M4 Barrel- QPQ 1-7 Twist BONUS Sig Sauer 1911 Carry Spartan .45ACP - Red Barn Armory Red Barn Armory.com Gift Card
RBA 16" AR15 5.56 M4 Carbine Barrel 1-7 Twist PLUS Free Gas Tube & Gas Block
List Price: $199.85
Our Price: $159.95
Sale Price: $119.95
In Stock
(9)
Sig Sauer 1911 Carry Spartan .45ACP Pistol 4.25"
List Price: $1,356.00
Our Price: $1,249.95
In Stock
Red Barn Armory Gift Card
Our Price: $0.01
In Stock
(2)
AR15 Upper Builder's Kit - 7.5" Pistol Sig Sauer SBX (Gen 2) Pistol Stabilizing Brace Radical Firearms Quad Rail Upper Assembly
RBA AR15 Upper Builder's Kit - 7.5" Pistol (Free Shipping)
List Price: $299.95
Our Price: $199.99
In Stock
(8)
Radical Firearms Quad Rail Upper Assembly
Our Price: $289.95
In Stock
(6)
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. So if you have any questions, give us a call at 281-798-9919.  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!