Most of the manuf today make good guns, like the other guy said, the lower is the serial number, the upper does the business. I have a full SP1 upper on mine, with a semi auto lower made by palmetto armory in south carolina, works great. Hits dead on at 200 yards with iron sights. A lot of fun to shoot. The colt H-bar, is just that, a heavy barrel, those guns are heavy, all of them. My sp1 is no where near those things. But the old colts were great. The colt lower is very desirable, the a4 is a shorty I think, so you might not be hitting anything long range.
I could write a book.
· 9 years ago