4.5" Dedicated .22LR Barrel

4.5" Dedicated .22LR Barrel – Salt Bath Nitride

Build a high-performance, ultra-compact rimfire setup with our 4.5" Dedicated .22LR Barrel. Specifically engineered for dedicated .22LR AR-15 uppers, this short barrel profile keeps standard high-velocity .22LR ammunition sub-sonic (ideal for suppressor host builds) while maintaining tight tolerances and maximum reliability.

Key Features & Specifications:

• Caliber: Chambered in .22LR for dedicated rimfire AR-15 uppers.
• Barrel Length: 4.5" length—perfect for compact pistol builds and optimized suppressor clearance.
• Material: Crafted from durable 4140 Chrome Moly (CrMo) steel for long-lasting performance and barrel longevity.
• Profile: Medium Taper Profile provides ideal balance, stability, and weight distribution.
• Finish: Salt Bath Nitride (QPQ) finish inside and out for exceptional wear resistance, smooth cycling, and corrosion protection.
• Twist Rate: 1:16 Twist Rate, optimized to stabilize standard and heavy-grain .22LR projectiles.
• Muzzle Threads: Standard 1/2x28 TPI thread pitch for easy attachment of suppressors, flash hiders, or muzzle brakes.