The Failures: The gun is basically a single shot.
1. Chamber a round. Fire it.
2. Bolt does not move, but maintains its grip on the cartridge with the extractor.
3. Charging handle won't budge, making mortaring necessary to extract/eject spent case.
4. Release the bolt, chambering the next round.
5. Repeat at step 1.
The above sequence happened on the very first round and on EVERY round fired thereafter. On a FEW rounds, the cartridge/bolt would half-way retract out of the chamber.
I think I've ruled out magazines and ammo due to the fact that it choked on every mag I had, and with TWO types of ammo.
Below is the configuration info for the gun/mags/ammo
The Upper: LMT 14.5" w/ perm. attached Vltor VC-1 (done by ADCO). Aimpoint T1 in Larue mount. Upper has never been fired before today.
The BCG: FA BCG & bolt with McFarland single piece gas ring. (unknown maker)
The Lower: LMT-made DSA lower with all Colt internals
Magazines: PMags, Brownells Aluminum Mags, and Colt Al mags.
The Ammo: Remington Green Box 55gr AND Federal black box 55gr xm193
Any help would be appreciated.
Thanks,
Jason
ps, on a side note, my new SCAR 16S ran without issues, and felt very soft shooting compared to a carbine length gas system AR.


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