Direct replacement for all M1 Garands. Offers increased volume over the GI gas nut for reduced pressure. Plug is not vented, or adjustable. Schuster plug softens the blows on your op-rod and wear on the bolt lugs. Ideal for use with factory loads. Even if you only shoot your M1 once in a while make it last a second lifetime. Made from Hardened Tool Steel & Parkerized.
*** Legal for CMP service rifle. NOT legal for As Issued CMP Games. ***