Proof Carbon Fiber Drop in Barrel for CZ 455/457 22 LR 20" 1:16 Twist 1/2-28 Thread

The Proof Carbon Fiber Drop-In Barrel for CZ 455/457 in .22 LR is a precision-engineered replacement barrel designed for shooters demanding accuracy and lightweight performance. Pre-fitted and threaded to 1/2-28 specifications, this 20-inch barrel arrives ready for direct installation—no gunsmithing required. The 1:16 twist rate optimizes stabilization across standard .22 LR ammunition, making this barrel suitable for target work, precision field marksmanship, and competitive shooting applications where consistency matters.

Carbon fiber construction delivers measurable weight savings compared to traditional steel barrels while maintaining the rigidity required for sub-MOA accuracy at distance. The 20-inch length balances velocity retention with handling in field conditions, while the 1/2-28 threading accommodates suppressors, muzzle brakes, and other threaded accessories common to precision .22 LR setups. At 2.36 lbs, the barrel significantly reduces overall rifle weight, which translates to improved control during extended shooting sessions and easier portability for range and field use.

This barrel is ideal for CZ 455/457 owners seeking a direct upgrade path without stock modifications or receiver work. Target shooters, precision rifle competitors, and hunters pursuing small game at extended range benefit from the accuracy gains and reduced barrel harmonics that carbon fiber construction provides. The drop-in design eliminates fitting variables, ensuring consistent results across different shooter skill levels while reducing installation time to minutes rather than hours at a gunsmith.

Proof Research barrels represent a category standard in precision rifle manufacturing, with proven track records across match competitions and professional applications. The carbon fiber drop-in barrel for CZ platforms extends that reputation to the rimfire market, offering serious .22 LR shooters a performance upgrade that addresses both accuracy and weight simultaneously—two factors that compound in importance as shooting distances and session duration increase.