Steve - FWIW - I think the PTR 91 is a very good investment. You are getting an improved HK91 at a bargain price (for an HK). After reading Boston's book and my experience with Century and Hesse CETME's I was a bit leary of the PTR 91's. However I can report my friends and I put 100 rounds of mixed brand / weight ammo through the PTR 91 and it functioned without problem with all of them from shot one with both alm. and steel HK mags. Everyone at the range was impressed with the quality of the rifle - welds, ergonomics, finish and sights. As a testimony - this past Tuesday a regular customer was taking delivery of his CAI CETME and after he spied the PTR 91 on the wall rack and ended up walking out of the store with "my" shop PTR at more than twice the price of the CETME. For $700 ish plus shipping they are a great bargain. Mags are inexpensive for factory HK in both alm. and steel. There are also collapsable stock and bipod options available that I have ordered in for testing as well as green and wood furniture. We have ordered more rifles for stock and are going to dedicate an area in shop for HK and clones accessories and equipment as I believe the quality and affordability of the PTR line is going to stimulate 30 cal. interest for several of our customers. Sorry - I am beginning to sound like a public relations pimp for the PTR guys. I will mount a scope on one as soon as the new orders come in and will give an update on accuracy.