Sierra 316L 5.56 16" 1:7 Twist Black M4 Mil-spec Low profile gas block under handguard 10 Rd mag. 1:7 twist Lightweight barrel
Sierra 316L 5.56 16" Black
$560.00Price
GUNSMITH SERVICES
Sierra 316L 5.56 16" 1:7 Twist Black M4 Mil-spec Low profile gas block under handguard 10 Rd mag. 1:7 twist Lightweight barrel