- .355 Cal - Can be reamed for 9mm, 9x21, 9x23, 38 Super, 9x25 Dillon, .357 Sig, 9x40
- Commander Length 4.15" Bull Barrel
- Wilson Nowlin Ramp
- Non-threaded, matched combo effectively controls muzzle flip from high pressure ammunition while adding match-grade accuracy.
- First chamber has a 15° forward wall to increase lockup time. .932" wide comp provides clean, precise fitting to slide.
- Eliminates the barrel bushing for increased lockup area and improved accuracy.
- STI barrels are made from 416 rifle grade stainless steel billet forgings
- The bore is gun drilled, button rifled, then air gauged to offer the most exacting size and finish to make this the most consistent barrel available.
- 1/16 twist with 6 lands and grooves.
- The barrels are vacuum heat treated and vacuumed tempered to 40 Rockwell
- Machined to exacting specifications.
- Extra material at the feed ramp, hood, locking lugs and muzzle allow precise fitting.
- The barrels are short chambered to allow gunsmiths to cut the chamber to their application.
STI builds some of the finest handguns in the world. They offer a selection of those same custom quality gun parts and accessories so you can best modify or build the gun of your dreams.
Ultra Match Grade Materials and Processes:
- Material: 416R Certified Stainless Steel
- Rifling: Precision Broach Cut Rifling
- Machining: Precision CNC Machined
