MSR Uppers are now available from Savage Arms. The Savage MSR Uppers will fit any mil-spec lower and/or Savages MSR15 Lower receiver. They come with the complete bolt carrier group and charging handle. They do not come with magazines. Muzzlebrakes/flash hider are removeable. - 22 Stainless Steel Barrel - Chambered in .223 Rem./5.56mm - Custom length gas system with adjustable gas block - Custom forged upper receiver with non-reciprocating side charge handle - Two-port adjustable muzzle brake - Free-float handguard with MLOK - Complete with bolt carrier group side charging handle and rear charging handle - Barrel length: 22 - Twist Rate: 1:8-5R - Overall length: 31.63