Radical Firearms 10.5" 5.56 NATO 1:7 Carbine Length M4 Complete Upper - 10" M-LOK FCR Rail
The Radical Firearms 10.5" 5.56 NATO M4 Complete Upper is a law enforcement grade, drop-in solution for your next AR build. Crafted with quality materials and covered by Radical’s lifetime warranty, this MIL-SPEC upper receiver provides an outstanding solution for any budget. Arrives at your door with the hard work done. Finish the build with your favorite lower receiver and sights, then head for the range!
The Radical Firearms FCR system is a slim handguard that provides the weight savings you want without sacrificing any of the mounting possibilities you require. This freefloat design offers a monolithic Picatinny rail and plenty of M-LOK attachment points for all your gear.
- 10.5" 41V50 chrome moly vanadium steel M4 contour barrel with Melonite finish
- Chambered in 5.56 NATO with a 1:7 twist rate
- M16 cut bolt carrier group with Melonite finish
- BCG high pressure tested and magnetic particle inspected
- Standard charging handle
- 1/2x28 A2 flash hider
- 10" Radical Firearms M-LOK FCR rail
- Made in the U.S.A. in Stafford, Texas!
Ratings & Reviews
Some cheap parts, but it'll do for an experiment
by Dustin -
PA, great service! 10/10.
<br>As for the upper, price wise you're getting a lot, and if you want something that's 'just good enough' you might get it with this. I purchased this upper for an experimental build to see how cheap I could go and try my hand at painting. Upper receiver matched just fine with the spike's lower. BCG felt ok, if not a little on the cheap end, and only round count will tell if it's any good. The reviews on the BCG don't leave me with an expectation of over 300 rounds though. I was disappointed when I removed the rail (which felt great in the hand) and after painting I found that two fo the bolts would not catch in the barrel nut. Those bolts are now being held in place with JB weld, and I am not happy about that. Thankfully there are 6 more bolts holding the rail in place. Can't complain about too much for the price, just understand the expression "buy once, cry once" holds some merit, and this proves it.