http://www.midwayusa.com/product/76...3-upper-receiver-assembly-10mm-auto-16-barrel
This flattop A3 upper receiver comes complete with charging handle, bolt carrier assembly, A2 front sight, sling swivel, bayonet lug and threaded muzzle with flash suppressor. The 16" button rifled barrel is chambered for 10mm and has a 1 in 16" rate of twist. Ready for installation onto any standard AR-15 lower receiver. Includes one 18 round magazine. Lifetime factory warranty.
Technical Information
This flattop A3 upper receiver comes complete with charging handle, bolt carrier assembly, A2 front sight, sling swivel, bayonet lug and threaded muzzle with flash suppressor. The 16" button rifled barrel is chambered for 10mm and has a 1 in 16" rate of twist. Ready for installation onto any standard AR-15 lower receiver. Includes one 18 round magazine. Lifetime factory warranty.
Technical Information
- Upper Receiver Type: A3 Flat-Top
- Barrel Length: 16"
- Barrel Contour: Not listed by manufacturer
- Barrel Material: Stainless Steel
- Muzzle Thread Pattern: Not listed by manufacturer
- Chrome Lined: No
- Barrel Finish: Black Matte
- Twist Rate: 1 in 16"
- Chamber: 10mm
- M4 Feed Ramps: No
- Muzzle Device: A2 Flash Suppressor
- Gas System Length: N/A-Blowback
- Gas Block Diameter: N/A
- Handguard: M4 Polymer Handguards
- Sights: A2 Front Sight
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: 10mm Compatible Carrier