Step up to serious energy with this .300 HAM’R 16" Upper featuring a Shaw barrel—built for shooters who want more punch, reliable cycling, and real-world performance. The 416R stainless steel barrel with a 1:12 twist is optimized for the .300 HAM’R platform, delivering excellent velocity, accuracy, and terminal performance.
The intermediate adjustable gas system allows you to fine-tune recoil and function, while the 13.5" M-LOK free-float handguard provides a lightweight, rigid platform for improved accuracy and accessory mounting. Finished with a Patriot Arms tactical muzzle brake, nitride BCG, and ambidextrous charging handle, this upper is built to run smooth and hit hard.
Performance Highlights:
.300 HAM’R Chambering – increased power over 5.56 platforms
16" 416R Stainless Shaw Barrel – precision and durability
1:12 Twist Rate (Button Rifled) – optimized for .300 HAM’R performance
Blackout Feed Ramps – reliable feeding
Adjustable Intermediate Gas System – smoother recoil & tunable cycling
13.5" M-LOK Handguard – free-float accuracy & modularity
Patriot Arms Tactical Muzzle Brake – reduced recoil, faster follow-ups
Nitride BCG – dependable, hard-use reliability
Ambidextrous Charging Handle – fast, versatile operation
Why This Upper Stands Out:
Hard-hitting performance with improved ballistics
Smooth, controllable recoil with adjustable gas system
Reliable feeding and cycling
Built for hunting, defense, and range performance
Ideal For:
Hunting and field use
Defensive rifle setups
Range and training applications
Shooters wanting more power than 5.56
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300 HAM'R Upper
since I purchased this upper last Feb i have had excellent results in shooting it and would highly recommend it to anyone waffling on whether or not to pull the trigger (duh) - it loves to print ace of clubs continuously at 100+ yards - thank you so very much - Jon Garner