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)
*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
*Durable type iii, mil-spec, black anodized finish
*Marked 5.7x28
*Great for NFA SBR builds (CMMG Barrels recommended) or upgrading your factory receiver
*Will accept standard FN® PS90® parts
*Monolithic single-piece construction with removable side rails
*Billet 6061 aluminum construction provides higher strength than the factory cast receiver
*Durable type iii, mil-spec, black anodized 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.
