AR-STONER AR-15 Side Charging Upper Receiver Assembly 223 Remington (Wylde) 18″ Spiral Fluted Heavy Barrel 15″ M-LOK Ultralight Handguard

Product Overview
The AR-STONER AR-15 Side Charging Upper Receiver Assembly 223 Remington (Wylde) 18″ Barrel with 15″ M-Lok Handguard has an 18″ Spiral Fluted barrel with a Heavy Barrel profile, made of 4150 CMV steel with a parkerized finish, and features a 1:8 Twist Rate and a mid length gas system. The Upper includes a 15 1/4″ MLOK gen 3 rail, an M4 flat-top forged upper receiver, a bolt carrier group, and a right charging handle. It is chambered in .223 Wylde and machined with M4 feed ramps in the barrel extension.

Specifications
Product Information
Cartridge 223 Wylde
Color Black
Finish Anodized
Material Aluminum
Weight 4 Pound
Barrel Length 18 Inches
Twist 1:8 Inches
Threads 1/2″-28
Barrel Contour Heavy
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Mid-Length
M4 Feed Ramps Yes
Upper Receiver Type Side Charging
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 15″ M-LOK Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15
Delivery Information
Shipping Weight 6.360 Pounds