Rcbs Sizer Die Book Machined with 7/8"x14 threads to

Machined with 7/8"x14 threads to fit all presses and stands

Not compatible with MAGPUL MOE M-LOK

ensuring that both long and short optical tubes are compatible with this mount

The 2-10x42 is an extremely popular all-around size for competition and hunting

Rcbs Sizer Die Book Machined with 7/8"x14 threads toThe Small Base Sizer Die is for bottleneck type cases used in tight chambering semi automatic, pump or lever action firearms. The sizer resizes cases below SAAMI minimums, reducing the shoulder and body by a few thousandths. It also de primes the case. Note: Not recommended for ammunition used in bolt action rifles. Sizes brass smaller than SAAMI specs Bottleneck type cases semi automatic like AR 15 Reduces shoulder and body by a few thousandths De