Radical Firearms 10.5" 5.56 NATO 1:7 Carbine Length M4 Complete Upper - 10" M-LOK FCR Rail

SKU: CFU10.5-5.56M4-10FCR
MPN: CFU10.5-5.56M4-10FCR
Manufactured by Radical Firearms
1 Reviews


In Stock

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Barrel Length10.5
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandRadical Firearms
Caliber Gauge5.56 NATO
Gas System LengthCarbine
Gas System TypeDirect Impingement
Handguard10 in Radical M-LOK FCR Rail
Muzzle DeviceA2 Flash Hider
Twist Rate1:7

Ratings & Reviews

1 review

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Some cheap parts, but it'll do for an experiment

by -

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.