AR15 Parts
AR15 Parts are essential components for building, customizing, and maintaining modern sporting rifles. At Arms East, we supply Canadian and USA shooters with quality upper receivers, bolt carrier groups, dust covers, lower receivers, and complete upper assemblies. Whether you’re assembling your first AR15 Parts build or upgrading an existing platform, our AR15 Parts selection includes both individual components and integrated groups. We ship to both Canada and USA with flat rate shipping to the States, making it convenient for customers on either side of the border to source reliable parts.
- AR15 Barrels Add to cart
Ballistic Advantage 6.5 Grendel 16″ SPR Fluted Midlength Barrel delivers sub-MOA accuracy with match-grade ammunition, engineered for AR-platform builds with aggressive fluting for weight reduction and premium 416R Stainless Steel construction.
$255.00Low Stock - AR15 Barrels Add to cart
Ballistic Advantage 6.5 Grendel Type 2 barrel delivers sub-MOA accuracy with 416 Stainless Steel construction, 1:8 twist, and 5/8×24 threading for suppressors. Premium Series performance includes Nickel Boron Coated feed ramp extension and HP/MPI testing.
$251.75Low Stock - AR15 Uppers Add to cart
Alexander Arms 6.5 Grendel DIY upper kit includes everything needed to build your own AR15 upper receiver assembly, featuring a 16-inch steel barrel with 1:8″ twist rate and matte black finish.
$650.00Low Stock - AR15 Uppers Add to cart
Alexander Arms AR15 Upper Hunter in 6.5 Grendel delivers precision downrange capability with an 18-inch steel barrel and optimized 1:8″ twist rate. This complete upper assembly features matte black finish, A2 flash hider, and comes equipped with bolt carrier group and Alexander Arms hand guard.
$884.00Low Stock - AR15 Uppers Add to cart
Alexander 17 HMR AR-15 upper receiver with fluted stainless steel barrel and complete conversion kit—ready to assemble on your standard lower. Includes aluminum M-LOK handguard, recoil cassette, magazine well insert, and two 10-round magazines.
$989.00Low Stock 
American Built Arms Company 5.56 NATO Bolt Assembly Nickel Boron Accessory
American Built Arms CompanyAdd to cartAR15 Bolts Add to cartAmerican Built Arms Company’s 5.56 NATO bolt assembly features nickel boron plating that requires virtually no lubrication, paired with a manganese phosphate coated extractor for superior extraction performance. Made in USA.
$90.00Low StockAngstadt Arms AAUMDP0906 MDP-9 Roller Delayed 9mm 5.85″ Black Type III Hard Coat Anodized Barrel
Angstadt ArmsAdd to cartAR15 Uppers Add to cartAngstadt Arms MDP-9 Roller Delayed 9mm features a revolutionary roller delay action that effectively reduces recoil in a compact, lightweight design. The 5.85″ barrel delivers Type III Hard Coat Anodized black finish for reliable protection.
$1,681.00Low Stock- AR15 Bolts Add to cart
Angstadt Arms AR 45 ACP Nitride Bolt Carrier Group feeds reliably from GLOCK magazines with a QPQ black nitride 8620 steel finish designed for AR-15 compatibility.
$162.00In Stock - AR15 Uppers Add to cart
Angstadt Arms UDP-9 6″ complete upper receiver in 9mm pairs seamlessly with any 9mm AR-15 lower and accepts both GLOCK and COLT style magazines.
$556.00In Stock - AR15 Uppers Add to cart
AR Five Seven Center ULT Upper Assembly delivers a complete 5.7x28mm upper receiver platform with a 12″ barrel featuring black Melonite finish and 7075 T6 forged aluminum construction for lightweight strength.
$766.00In Stock - AR15 Uppers Add to cart
Geissele Automatics AR-15 10.3″ Super Duty stripped upper receiver in DDC features a 1-7 twist rate optimized for versatile ammunition compatibility. Built for precision and durability, this upper delivers the quality craftsmanship Geissele is known for in a compact, configurable platform.
$1,212.00Low Stock - AR15 Bolts Add to cart
Angstadt Arms Bolt Carrier Assembly machined from 8620 steel with QPQ black nitride finish, engineered for 9mm Luger AR-15 platforms with removable weight design for folding stock adapter compatibility.
$162.00In Stock - Other AR15 Accessories & Parts Add to cart
Strike Industries Billet Ultimate Dust Cover precision-machined from solid billet aluminum with quick-detach installation and adjustable detent for AR-15 platforms. Available in FDE anodized finish with noise-reduction rubber padding and built-in double seal.
$34.95In Stock - AR15 Barrels Add to cart
Ballistic Advantage 6″ .300 Blackout AR-15 pistol barrel features a 1-7 twist rate optimized for subsonic and supersonic ammunition. Built for compact pistol-length systems demanding reliable performance.
$155.00In Stock - AR15 Uppers Add to cart
Geissele Super Duty MOD1 complete upper delivers precision duty performance with CHF chrome-lined 10.3″ barrel, Nanoweapon Reliability Enhanced BCG, and 9.3″ MK16 rail in 5.56 NATO.
$1,333.00Low Stock - AR15 Parts Add to cart
Armaspec B1 Extended Magazine Release delivers faster magazine changes on AR-15 platforms with enhanced control and ergonomics.
Original price was: $22.00.$17.99Current price is: $17.99. SALEIn Stock - AR15 Parts Add to cart
Armaspec B1 Extended Magazine Release delivers faster, more ergonomic magazine changes on your AR-15 platform. This Flat Dark Earth accessory improves handling and speed when you need it most.
$17.99Low Stock - Other AR15 Accessories & Parts Add to cart
Armaspec B2 Extended Magazine Release speeds up AR-15 magazine changes with a skeletonized Flat Dark Earth design.
$19.79Low Stock
