Dustint21 Posted September 10, 2014 Share Posted September 10, 2014 I am almost finished with my first 3 gun rifle build. Lancer lower CMC trigger Moe fixed stock Moe+ grip Vltor upper 18" nordic barrel SJC comp RCA BCG Syrac adjustable gas block 15" MI Keymod handguard Larue mount Swarovski 1-6 5 shot group at 50 yards off the bed of the truck. I think the rifle will do its part, now I just have to do mine... Link to comment Share on other sites More sharing options...
dhunt91 Posted September 10, 2014 Share Posted September 10, 2014 Nice set up whats the weight like on it? Lomos parts? Link to comment Share on other sites More sharing options...
Dustint21 Posted September 10, 2014 Author Share Posted September 10, 2014 (edited) Nice set up whats the weight like on it? Lomos parts? Thank you! I haven't put it on a scale. I will tomorrow. Yes the BCG is a lomos RCA. I am using a rifle buffer with no weights inside. Edited September 10, 2014 by Dustint21 Link to comment Share on other sites More sharing options...
Mike_M Posted September 10, 2014 Share Posted September 10, 2014 Wow! Very cool. Link to comment Share on other sites More sharing options...
TonytheTiger Posted September 11, 2014 Share Posted September 11, 2014 A lot of rifles want to be your rifle when they grow up. Any reason you went with the adjustable gas block instead of the adjustable gas key that RCA offers? Link to comment Share on other sites More sharing options...
jtaylor996 Posted September 11, 2014 Share Posted September 11, 2014 Probably reciprocating mass. I'm sure that adjustable key weighs more than a standard one... which might explain why the RCA "lightened" BCG is actually only barely lighter than a mil spec BCG. An adjustable gas block will add nothing to the reciprocating mass. Link to comment Share on other sites More sharing options...
TonytheTiger Posted September 11, 2014 Share Posted September 11, 2014 While I understand your logic, I have to disagree with your facts. Advertised JP LMOS carrier weight is 6.25oz with key, RCA light carrier with adjustable key or standard key is advertised at 6.8oz while most mil spec carriers I'm aware of are between 9.5-10.5oz. That's all from memory so I could be wrong but I would say that the RCA is significantly lighter than mil spec and probably not noticeably heavier than the JP. Also the only difference between the standard and adjustable key is a hole drilled in the back then filled back up with two small screws so I can't see how it would differ much weight wise. That said the adjustable key seems to be an unproven system while gas blocks seem to work these days. Link to comment Share on other sites More sharing options...
jtaylor996 Posted September 12, 2014 Share Posted September 12, 2014 You know what? I was thinking of the Seekins lightweight. That's the one that is still over 10oz... Still, I'm curious weather the adj gas key is heavier than a normal one. Link to comment Share on other sites More sharing options...
Dustint21 Posted September 13, 2014 Author Share Posted September 13, 2014 A lot of rifles want to be your rifle when they grow up. Any reason you went with the adjustable gas block instead of the adjustable gas key that RCA offers? I went with the gas block because I haven't heard or seen enough on adjustable key yet. I also like the fact the the GB is easy to adjust. No need to pull the BCG to make adjustments. Link to comment Share on other sites More sharing options...
MarkCO Posted September 13, 2014 Share Posted September 13, 2014 If you are using an RCA, keep a vigilant eye on the cam pin hole in the bolt and the carrier. First sign of wear or slop, replace it. Link to comment Share on other sites More sharing options...
Dustint21 Posted September 14, 2014 Author Share Posted September 14, 2014 If you are using an RCA, keep a vigilant eye on the cam pin hole in the bolt and the carrier. First sign of wear or slop, replace it. Thanks for the tip! Link to comment Share on other sites More sharing options...
george995 Posted September 14, 2014 Share Posted September 14, 2014 awesome rig. I have an sjc titan on my 308ar and while loud as hell, it is very effective. I can imagine your setup barely moves if that. Link to comment Share on other sites More sharing options...
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