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lr-308 / Ar-10 bolt carrier questions.

locotrician

Sergeant of the Hide
Full Member
Minuteman
Dec 15, 2008
305
58
43
North east, united states
Hello all, i cant seem to find a definitive answer on this either way . I have an SI Defense matched 308 receiver set , a 24 inch kreiger 260 barrel and a bat machine receiver extension . Do i have my choice of dpms or armalite style bolt carrier group or do i need to stick with dpms. I would like to run the armalite due to the balanced lugs and smaller firing pin diameter but im not 100 percent if it will be compatible with the bat extension , bat says dpms will definitly work and armalite should work they think , not confidence inspiring for the armalite.
 
Both work if you are running a DPMS BGC you might have primer flow due to the larger FP diameter and opening in the bolt face for the FP. Just use a complete bcg and you should be good to go. Just check headspace.


Hello all, i cant seem to find a definitive answer on this either way . I have an SI Defense matched 308 receiver set , a 24 inch kreiger 260 barrel and a bat machine receiver extension . Do i have my choice of dpms or armalite style bolt carrier group or do i need to stick with dpms. I would like to run the armalite due to the balanced lugs and smaller firing pin diameter but im not 100 percent if it will be compatible with the bat extension , bat says dpms will definitly work and armalite should work they think , not confidence inspiring for the armalite.