Tri Rail Variant, XF50 billet upper receiver (formerly the EFFEN90) by Imperial Arms Co.
This is only for the stripped receiver. No other parts are included.
This is only for the stripped receiver. No other parts are included.
XF50 = CrossFed-50Rounds
Precision CNC'd out of billet 6061 aluminum
Weighs 14.8 oz (35% lighter than the Factory FN® receiver)
Tactical low profile, integral, 12 lug, mil-spec picatinny rail
Monolithic single-piece construction with removable side rails
Billet 6061 aluminum construction provides higher strength than the factory cast receiver
Magpul FDE Cerakote Finish
Marked 5.7x28
Great for NFA SBR builds (CMMG Barrels recommended) or upgrading your factory receiver
Will accept standard FN® PS90® parts
Simply THE BEST aftermarket PS90/P90® receiver ever made
Must ship to an FFL. Transfers as a stripped receiver. It is your responsibility to know your own state and local firearms laws before purchasing.
