Posted: 5/10/2006 6:06:05 PM EDT
So, I just put a new RR lower together and thought I would put my Bushmaster upper on it just to function test it. Seems that the rear lug on a BM is to long to fit in a high shelf lower. No big deal, since I don't plan on using this upper on this lower, I was just messing around. Question is, are there any other uppers that will pose this same problem or is it just BM?I was hoping to find a BM V-Match upper for this lower. I guess I could just get the file or sander out and do a litlle remodeling, right. Any other problems to expect? |
) hammer to get them together.
| Problem solved. It took a tiny bit of filing where the rear lug comes together with the receiver to make it fit. It was the Bushmaster that was out of spec. The lower was right or over spec by about .010. Just a bit of sloppy machine work on the part of BM and not a good square shoulder like it should be. |
Give jkiser, a local Georgia Hometown Forum and site vendor, a call on his CMT/Stag lowers. He's got great prices. www.ar15.com/forums/topic.html?b=7&f=21&t=329926 - $99 stripped www.ar15.com/forums/topic.html?b=7&f=21&t=311790 - $225 complete w/ 6-position stock Good stuff; good guy. |
| I have a RRA lower and it's awesome. A friend also bought a RRA lower and his is awesome as well. It seems 1 bad apple so far. Mine works great and actually has out performed a friends Colt. I approve of RRA all the way, and i guess the DEA does also. Just my opinion though. |
| I have several RRA lowers and several BM uppers. They are a very tight fit but all the BM uppers will go on the RRA lowers. Never had a problem were a file was needed. Just some good oil or grease. I really liked the tight fit to be honest. Although, I do prefer the BM lowers over the RRA. Yes, RRA does have a nice finish on them but IMHO I think BM is better quality. The new (BFI serial) lowers have just as good finish as the RR. |
