PS1 ASSEM. UPPER, 6.8SPCII, 16" HEAVY FLUTED CAR. BARREL, 10" TACTICAL HANDGUARD, W/ADJ GAS BLK

 

What does the II mean? It's the difference between the 6.8 and the Spec II with a 1:11 twist, meaning more velocity. The 6.8 has a 1:10 twist ratio

PRESTIGE SERIES UPPER 6.8SPCII-HFL-CL-TA

SKU: PS1-UP-6.8SPCII-HFL-CL-TA
$1,125.00Price