AR15 Uppers
AR-15 complete uppers let you change calibers, barrel lengths, or configurations without touching the lower receiver. Assembled options drop directly onto any mil-spec lower — stripped uppers give you the starting point for a custom build. Common configurations include 16″ 5.56 carbines, 18″ .223 Wylde precision uppers, 7.5″–10.5″ .300 Blackout pistol uppers, and 6.5 Grendel or 6 ARC long-range builds. Aero Precision, BCM, Daniel Defense, and Anderson Manufacturing all ship complete upper assemblies ready to run.
- 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 - AR15 Uppers Add to cart
Angstadt 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 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 
Battle Arms Development Workhorse Blemished Stripped Upper Receiver for AR-15 Flat Dark Earth
Battle Arms DevelopmentAdd to cartAR15 Uppers Add to cartBattle Arms Development WORKHORSE Blemished Upper Receiver delivers precision 7075-T6 aluminum construction with MIL-SPEC compatibility at a substantial savings. Factory blemished with unique gray-to-light tan anodizing, it’s stripped and ready for custom AR-15 builds.
$57.00In StockBattle Arms Development Xiphos Multi-Caliber 10 Inch Upper Receiver
Battle Arms DevelopmentAdd to cartAR15 Uppers Add to cartBattle Arms Development Xiphos Multi-Caliber 10 Inch Upper Receiver delivers lightweight performance with 7075 T6 aircraft-grade billet aluminum construction, fully compatible with any MIL-SPEC style 9MM lower receiver. Purpose-built for PCC platforms with engineering optimized for seamless pairing with BAD lower receivers.
$259.00In Stock- AR15 Uppers Add to cart
Black Rain Ordnance Carnivore 450 Bushmaster 16″ upper delivers proven stopping power for AR platform hunters with M-LOK handguards and precision engineering. Complete upper receiver ready to pair with your AR-15 lower.
$1,010.00Low Stock - AR15 Uppers Add to cart
Brownells BRN-180 Gen 3 300 Blackout upper delivers short-stroke gas piston reliability with a four-position switchable gas system for tuning across suppressed and unsuppressed loads. Built on AR-180 engineering with a buffer tube-free bolt carrier, it features a 9″ barrel with 1:6 twist and tool-free gas adjustment.
$1,368.00In Stock - AR15 Uppers Add to cart
Brownells XM177E2 11.5″ complete upper receiver delivers authentic 1-12 twist carbine performance in a historically accurate, combat-ready package. Classic XM177E2 flash hider and M16A1-style configuration finished in black.
$891.00In Stock - AR15 Uppers Add to cart
CMMG Dissent 22 ARC 16.10″ carbine features a patent-pending Compact Action that consolidates the entire recoil assembly into the upper receiver for reduced bulk and length. Constructed from 6061-T6 aluminum with a 1:7 twist barrel, M-LOK handguard, reversible side charging handle, and adjustable gas block.
$1,235.00Low Stock - AR15 Uppers Add to cart
CMMG Dissent Mk4 Upper in .22 ARC delivers patent-pending direct impingement Compact Action with a streamlined, bufferless design and reversible side charging handle. The 16.10″ barrel pairs with adjustable gas block, 15″ M-LOK handguard, and 1:7 twist rate optimized for .22 ARC ballistics.
$1,322.00Low Stock - AR15 Uppers Add to cart
CMMG Dissent 22 ARC delivers 22-250 performance in a compact 16.10″ carbine with bufferless action and non-reciprocating side charger for faster cycling without losing your sight picture. Compatible with any mil-spec AR15 lower receiver.
$1,235.00Low Stock - AR15 Uppers Add to cart
CMMG Dissent 22 ARC upper features a patent-pending compact action with 16.10″ barrel, 15″ M-LOK handguard, and non-reciprocating side charging handle for rapid target transitions. Delivers .22-250 performance in a familiar AR15 platform with 6061-T6 aluminum construction and 1:7 twist optimization.
$1,235.00Low Stock CMMG Resolute MK4 300 Blackout 14.5 Inch Matte Black Assembled Upper Receiver Carbine
CMMGAdd to cartAR15 Uppers Add to cartCMMG Resolute MK4 300 Blackout 14.5″ assembled upper with pinned/welded muzzle brake and mid-length gas system for reliable subsonic and supersonic performance. M-LOK handguard and Lifetime Quality Guarantee included.
$509.00In StockCMMG Resolute MK4 300 Blackout 16.1 Inch Matte Black Assembled Upper Receiver Carbine
CMMGAdd to cartAR15 Uppers Add to cartCMMG Resolute MK4 300 Blackout upper receiver with 16.1″ 4140CM steel barrel and carbine-length gas system—ready to pair with any AR15 lower. Billet aluminum receiver features M-LOK handguard and CMMG muzzle brake.
$509.00Low Stock- AR15 Uppers Add to cart
CMMG Resolute MK4 in 350 Legend delivers a complete upper receiver ready to pair with any AR15 lower. Features a 16.10″ barrel and M-LOK free-float handguard in Armor Black.
$973.00Low Stock - AR15 Uppers Add to cart
CMMG Resolute Mk4 5.56 NATO upper with pinned and welded muzzle brake meets rifle length requirements without NFA registration. Features 1:7 twist rate, adjustable gas block, ATLAS S-One M-LOK handguard, and Made in USA quality backed by Lifetime Guarantee.
$509.00In Stock
