300 blackout upper built by Radical Firearms of Texas.
250 rounds through it, runs excellent.
16" barrel with a pistol length gas tube with radical firearms proprietary 10" rail. Comes with thread cap for featureless rifles AR-15 BCG and Standard milspec charging handle.
100 rounds of 220 sub-sonic ammo
312 rounds of 150 grain super-sonic ammo
$650.00 obo for upper and ammo, will no seperate.
Mossberg 24" JM Pro holds 10 rounds, cycles everything from low recoil 00 buck to HV slugs.
Tuned up with low drag high visability GG&G follower and low friction oR3gun spacer for faster cycling. Sling mount added.
Approx 800 rounds through the gun. Original boxes/papers/ chokes/ parts.