Up for sale is a 300blk upper from hardened arms. It's unfired, 8.5 inch barrel, pistol gas, "A" marked upper. Handguard is a 7 inch free float quad rail. Overall it's clean and never fired.
It's a solid budget lower along the lines of PSA, and a good way to get into 300blk to try out without investing much money.
Swap over this upper to your pistol/SBR lower, uses the same 5.56 bcg and mags as a standard ar15.
It's a solid budget lower along the lines of PSA, and a good way to get into 300blk to try out without investing much money.
Swap over this upper to your pistol/SBR lower, uses the same 5.56 bcg and mags as a standard ar15.
