AR-15 Uppers

300 AAC | AR-15 Uppers
All 300 AAC upper receiver assemblies are sold as fully-complete, function-tested, and ready-to-fire products.
Showing: 3 products
Lightweight 10.5" button-rifled, stainless steel barrel with a 1:7 twist rate, G10 composite MK10 series mid-length handguard, low-profile gas block, 5/8-24 RH threaded muzzle (non-optional). No muzzle device is pre-installed. Direct impingement operating system. Ships with one 30-round magazine. Weight of upper is approximately 3.4 pounds. Because this is a brand new model, production lead times may initially be several weeks or longer. This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required). All NFA rules apply. This product is not currently in production and is only available for pre-order.
$719.25
High-quality and precisely designed, built, tuned, and tested by the professionals at Alexander Arms® using only the best components we can manufacture. Picatinny flat-top railed receiver with carbine-length gas system, G10 composite carbine-length handguard, Picatinny railed gas block, semi-automatic military-style trigger, and a 16-inch, tightly-dimensioned, 416 stainless steel, 1:8 twist, fluted barrel. Muzzle threading is 5/8-24 TPI RH. Direct impingement operating system. Upper receiver features extended feed ramps. Stock extension tubes and carrier gas keys are properly staked. This weapon will fire both supersonic and subsonic ammunition. Weight of upper is 4.15 pounds. This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required).
$719.25
NRA Sale! For a limited time $100 off with free shipping! This upper features a flat-top receiver, 16" stainless steel barrel, 1:7 twist, threaded 5/8-24 TPI RH. It comes with the Manticore Arms Transformer Rail handguard and your choice of two sets of panels, a Cerakote finish of your choice (FDE, OD Green, or Graphite Black, you may request additional colors however additional charges may apply), and one 30 round 5.56 NATO magazine. This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required). Weight of upper is 3.9 lbs

Upper shown in Graphite Black with Snake Skin grip panels and KeyMod panels
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Before: $1,190.00
Now: $1,090.00
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