I just got this one day ago and replaced trigger group, op rod, stock and rear sight assembly just for S&G's. Took it out today, 39 deg. raining and windy, about froze my tail off, reminded me of Basic Training at Fort Knox, Ky. in Sept- Nov '66. Shot 30 rounds flawless operation. I didn't try to zero, that can wait till a little warmer weather. I think she'll make another fine piece for the collection. Headspace is less than half bolt closure on USGI Field Reject. I'll watch the headspace and replace barrel and bolt when needed. This one came with extra Winnie bolt and TRW op rod.