The Wilson Combat Protector Carbine is a semi-automatic rifle chambered in .300 HAM'R with a 16.25-inch match-grade stainless steel barrel. At 6.12 lbs and 35 inches overall, it's a compact and light package for the caliber. The 1:15" twist rate is optimized for .300 HAM'R bullet weights. 
 

Key Specifications 

• Model: Protector Carbine 
• Caliber: .300 HAM'R 
• Action: Semi-Auto 
• Barrel Length: 16.25" 
• Capacity: 10+1 rounds 
• Overall Length (OAL): 35" 
• Weight: 6.12 lbs 
• Stock: Magpul Carbine Stock 
• Receiver Material: Aluminum 
• Barrel: Match Grade Stainless Steel, 1:15" twist 
• Muzzle Device: TacFire Muzzle Brake 
   

Detailed Features 

• Match Grade Stainless Barrel: The 16.25-inch stainless barrel is cut to the 1:15" twist rate Wilson specifies for .300 HAM'R, so it stabilizes the cartridge's typical bullet weights well. 
• TacFire Muzzle Brake: The ported brake helps manage the .300 HAM'R's recoil impulse, which is more significant than 5.56. 
• Tactical Trigger: Wilson Combat installs one of their tactical triggers at the factory — pull is cleaner and more consistent than a mil-spec drop-in. 
• Magpul Stock: Six-position adjustable carbine stock. 
   

Usage 

The .300 HAM'R was designed by Wilson Combat as a .30-caliber AR-15 cartridge with better terminal performance on medium game than .300 Blackout at equivalent barrel lengths. At 16.25 inches it's still SBR-free and keeps the overall rifle length manageable. Ammo is not as widely stocked as common calibers, so buying in bulk or reloading is worth factoring in before committing to this platform.

The Wilson Combat Protector Carbine in .300 HAM'R draws consistent praise for accuracy and build quality. Wilson Combat's reputation for precise fit and finish holds up here — owners describe the machining and finish as top-tier compared to other production ARs.

The .300 HAM'R cartridge gets positive marks for its terminal performance on medium game, and the combination with a Wilson Combat trigger makes for a rifle that shoots better than most AR-pattern carbines at similar price points.

The main friction points are cost and ammunition. The rifle carries a premium price, which some buyers feel is hard to justify when comparing raw specs against mid-tier competitors. .300 HAM'R ammunition is niche — it's not a caliber you'll find at a rural sporting goods store, and the cost per round is higher than common AR calibers. This limits training volume for some owners and adds logistical complexity for others.

Reliability anecdotes are mostly positive, with owners noting it runs cleanly across a variety of loads. Community sentiment in forums leans toward recommending it specifically for hunting use, where the caliber advantage over .300 Blackout matters most, and less so for high-volume range work.