[DFin]

Originally Posted by rkrk

Not sure what is pictured but Choate makes a flush extension for the 590A1 that I have been running for while.

http://www.shotgunworld.com/bbs/view...36582&start=80 has a discussion on the extension.

Has worked well for me

rk

According to Fred Choate, in that thread, his extension adds +1 to the stock 5 round mag tube (6 shells in the mag tube +1 in the chamber) with the spring & follower he supplies. According to others in that thread it holds 7 shells in the tube (7+1) with the stock Mossberg follower.