This Smith & Wesson M&P15 AR-15 Carbine Upper Receiver Assembly is chambered in 5.56x45mm NATO and comes ready to fire right out of the box after installation onto any standard AR-15 lower receiver. This A3 flat-top upper receiver comes complete with charging handle, bolt carrier assembly, A2 front sight with sling swivel, bayonet lug, and threaded muzzle with flash hider. The 16" chrome lined barrel features a 1 in 9" rate of twist for exceptional accuracy. If you are looking for a reliable AR-15 carbine length upper, the M&P15 from Smith & Wesson is a great option.
- Upper Receiver: A3 Flat-Top
- Barrel Length: 16"
- Barrel Contour: M4
- Barrel Material: Steel
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: Yes
- Barrel Finish: Matte
- Twist Rate: 1 in 9"
- Chamber: 5.56x45mm NATO
- Bolt Carrier: One-Piece Bolt Carrier
- M4 Feed Ramps: Yes
- Muzzle Device: A2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: .750"
- Handguard: 2-Piece Polymer M4-Style
- Sights: A2 Front Sight
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
- Weight: Not Listed by Manufacturer
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.