This STI 1911 conversion kit will fit all their single stacks (ranger
II, Trojan, Spartan, Lawman, etc.) and most 1911s.
STI 1911 .22lr Conversion Kit. STI is proud to announce it’s newest offering: the .22 alternate top end for both 1911 and 2011 pistols. Fits on both government or commander models (although it doesn’t come fully forward on 2011s with a full length dust cover. This does NOT effect function- only cosmetics. See photos for examples.) Because the 4140 steel slide fits directly on either your 2011 or 1911 STI frame, you can train with it utilizing much less expensive ammunition saving you money. In fact, depending on how often you train it could pay for itself! The firing pin over travel stop allows practice dry firing to refine trigger control; eliminating the chance of damaging the firing pin or barrel. Each top end comes with a last round hold open 10 Round magazine which is machined from solid billet aluminum. The STI .22 top ends are available with two different magazine options for either your single stack 1911 or STI 2011 wide body frames, making this the most versatile .22 LR conversions on the market today