300 HAM'R 16" Shaw Barreled W/BCG and Charge Handle

300 HAM’R – Power, Precision, and Performance in an AR Platform

The 300 HAM’R was engineered to deliver optimal terminal performance in a standard AR rifle. Designed to rival the effectiveness of the legendary .308 Winchester, it even surpasses the ballistics of the iconic .30-30 Winchester – America’s most popular hunting cartridge of all time.

When compared to the 300 Blackout at 200 yards, the 300 HAM’R dominates with:

18% more retained velocity

40% more energy

56% flatter trajectory

This translates to superior accuracy, harder-hitting downrange power, and flatter shooting – all while maintaining low recoil in a lightweight AR platform that uses a standard 5.56 bolt carrier group (BCG). For added convenience, this assembled upper receiver includes the BCG.

Backed by Over a Century of Craftsmanship

With more than 100 years of barrel-making expertise, Shaw Custom is trusted by leading firearm manufacturers and shooters worldwide. Known for uncompromising quality, Shaw barrels are the benchmark of accuracy and reliability.

Precision-Built for Maximum Performance

*Each 300 HAM’R Upper is assembled with meticulous attention to detail*

Components torqued to exact Mil-Spec standards

Chamber and headspace verified for safety

Upper receivers trued and barrels bedded for accuracy

Gas systems tuned and test-fired with the included bolt carrier group

Ready to attach to your AR 15 Lower Receiver

The result is a rifle upper that’s reliable, precise, and ready for the hunt or the range.

Features:

Caliber - 300 HAM'R, Shaw 
Length - 16" Barrel
Material - 416R Stainless Steel
Finish - Matte, Bead Blasted
Twist - 1-12 Button Rifled
Ramp - Blackout
Gas System - Adjustable, Intermediate
Hand Guard - 13.5" MLOK
Bolt Carrier Group - Nitrite
Muzzle Brake - Patriot Arms Tactical
Charge Handle - Ambi