Used Empire Battle Tested BT-4 Combat with upgrades Mid-Cap Magazines The exhaust valve and valve

The exhaust valve and valve guide also incorporate a very large post-release sensing surface area that is tuned to complement the lever mechanism and the forces generated by the reciprocating parts

This is a listing for a used RAP4 468 Bolt Action

One of the benefits of the new valve

t take our word for it

Used Empire Battle Tested BT-4 Combat with upgrades Mid-Cap Magazines The exhaust valve and valveThis is a listing for a used BT 4 Combat. This marker shows signs of use, and it has been tested by our factory trained technician and is found to be in perfect working condition. See images below for more details. Some of the upgrades: Apex 2 barrel Barrel shroud M16 style sight rail handle Front Foregrip Stock Flashlight with pressure switch on off