AR-STONER AR-15 A3 Upper Receiver Assembly 450 Bushmaster 18″ Barrel 15″ M-LOK Ultralight Handguard

Product Overview
MidwayUSA is proud to offer this AR-STONER A3 Upper Receiver Assembly in 450 Bushmaster at an exceptional price! This AR-STONER Rifle length upper features a 450 Bushmaster bolt carrier group, parkerized finish, low profile gas block, 18″ barrel, 15″ M-LOK handguard and a heavy profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. Supplied without a rear sight, this upper is a great platform for a red dot sight or iron sights (both sold separately).

Features

450 Bushmaster Bolt Carrier Group
15″ M-LOK Handguard
18″ 1:24″ Twist Barrel
AR-STONER logo
Made In United States of America

Specifications
Product Information
Cartridge 450 Bushmaster
Color Black
Finish Matte Black
Material Aluminum
Weight 4.91 Pound
Barrel Length 18 Inches
Twist 1:24 Inches
Threads 5/8″-32
Barrel Contour Heavy
Sights No
Barrel Finish Matte
Chrome Lined No
Gas Block Diameter 0.875 Inches
Gas System Length Mid-Length
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material Steel
Handguard 15″ M-LOK Ultralight
Bolt Carrier Assembly Included Yes
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15
Delivery Information
Shipping Weight 5.850 Pounds