EMc Gun Parts and Services. 223 Remington, Super-14 Round Barrel & Weaver #92 SM. Standard frame crescents from being mounted. Since Smith & Wesson closed down the manufacture of Thompson/Center Arms, these are now; Vintage-Collectibles. Study pictures; Verify this matches part you need. What you see is what you get. Multiple items; combined when possible. Correspondence received; Saturday, might be answered.