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Rainier Arms Forged Upper was designed to fit our forged lower receivers with color, texture, & machining. These uppers are "T - marked" engraved and have extended M4 feed ramps.
Gen 2 Uppers are deep black finish and match well with RA lowers and MEGA lowers
Review by Brenton H. on 5 Oct 2024review stating Very nice
Matched with an older Mega Arms lower, not quite the zero play, one piece of aluminum fit of my mega upper/lower rifle but still a good fit. I can’t complain, Mega changed the game and as far as I’m concerned it was the upper/lower combo all others were judged. Still a good fit, the finish matches very well. All and all…. Two thumbs up.
Review by Alex G. on 1 Sep 2024review stating Excellent Upper
First, it matches the Rainier Arms Forged Lower perfectly -- it's the same finish (a satin anodized deep black) and fits well. It's very well machined. Smooth too. It's a thermo-fit by the way like the BCM M4 Upper, so you won't be able to just slip a barrel in without heat applied; I prefer this, however. Yes, I recommend and would buy again.
Review by Brenton H. on 5 Oct 2024review stating Very nice
Matched with an older Mega Arms lower, not quite the zero play, one piece of aluminum fit of my mega upper/lower rifle but still a good fit. I can’t complain, Mega changed the game and as far as I’m concerned it was the upper/lower combo all others were judged. Still a good fit, the finish matches very well. All and all…. Two thumbs up.
Review by Alex G. on 1 Sep 2024review stating Excellent Upper
First, it matches the Rainier Arms Forged Lower perfectly -- it's the same finish (a satin anodized deep black) and fits well. It's very well machined. Smooth too. It's a thermo-fit by the way like the BCM M4 Upper, so you won't be able to just slip a barrel in without heat applied; I prefer this, however. Yes, I recommend and would buy again.
