Product Info & Specs
The rarest of the rare – the MR223A3, (the civilian version of the HK416A5) never before sold in the United States. Parts kit includes the following:
MR223A3 upper receiver
HK marked bolt carrier group, complete with bolt
Op Rod and piston
Slim line vented gas block for 14.5-inch, 16-inch, or 20-inch barrels
MR223A3/HK416A5 barrel nut (Metric, and different from an MR556/HK416A3)
Flash hider – metric threaded, 15×1
Slim line HKey hand guard. Black version has the short length hand guard.
Flip up front and rear BUIS
HK marked 10-round magazine
Plastic muzzle cap
All packed in an HK marked hard case.