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.
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 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.
Original price was: $563.00.$507.00Current price is: $507.00. SALELow 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.
Original price was: $973.00.$864.00Current price is: $864.00. SALELow Stock - AR15 Uppers Add to cart
CMMG Resolute MK4 5.56 NATO upper receiver features a 16.1″ chrome moly barrel with mid-length gas system for smooth, reliable operation and pairs with any AR15 lower. Billet aluminum construction with M-LOK handguard and black Cerakote finish delivers practical durability.
$526.00Low Stock Fightlite Industries Mission Configurable Rifle 5.56 NATO Upper Receiver
FightLite IndustriesAdd to cartAR15 Uppers Add to cartFightLite Industries MCR-556-DFR upper receiver delivers belt-fed reliability with tool-free mission reconfiguration to fit any MIL-Spec AR15 lower, made in USA. The 16.25″ quick-change barrel features Dry Film Lubrication for extreme-condition performance and gas-piston operation.
$6,645.00In StockFightLite Mission Configurable Rifle 5.56 NATO 16.25 Inch Upper Receiver
FightLite IndustriesAdd to cartAR15 Uppers Add to cartFightLite Mission Configurable Rifle features a patented MCR upper receiver with quick-change 16.25″ barrel and gas-piston operation for tool-free configuration and extreme reliability. Accepts standard AR15 magazines or M27 linked ammunition with M-LOK rail interface for optics and accessories.
$6,798.00Low Stock- AR15 Uppers Add to cart
FN America’s FN15 16” Carbine Upper Receiver Assembly features cold hammer-forged Chrome Moly Vanadium steel barrels manufactured at the same Columbia, South Carolina facility that produces US Military M4 rifles. The 1-7 twist rate delivers reliable performance across a wide range of ammunition weights and velocities.
$958.00Low Stock
