Premium-quality, .45ACP barrel is precision machined from solid 416 stainless steel barstock to tolerances +/- .001" or less in critical areas. Heat treated to Rc 40-42 to maintain those dimensions, even under the battering of hard competition. These unramped barrels are broach rifled with a left-hand 1-16" twist. Some fitting required, so you can produce a tight, no-play fit for maximum accuracy from your gun. The match grade bushing is machined from the same premium-grade stainless steel, with I.D. and O.D. left slightly oversized to allow custom fitting to your barrel, further ensuring precise lockup and excellent accuracy.
SPECS: 416 stainless steel. Rc 40-42. .45ACP, 1-16” twist, left hand. Govt. – Barrel: 5” (12.7cm) long. Bushing: .829” long (21.1mm) long, .573” (14.6mm) I.D., .698” (17.7mm) O.D. Commander – 4½” (10.8cm). Bushing: .515” (13.1mm) long, .573” I.D., .698” O.D. Gunsmith fitting required.
Catalog page 91