Area 419 Magazine Extension ARCA Also works well for Picatinny

Also works well for Picatinny rail conversions with this part here

62 x 51 mm AM Box magazine for all AICS based detachable magazine systems with longer seating length allowed

AX 10 Round Double Stack (6677)

ADM 170S Clamp Instructions Here

Area 419 Magazine Extension ARCA Also works well for PicatinnyArea 419's opinion these are the only correctly made mag extensions on the market. Other magazine extensions on the market are simply rectangular blocks. If you look at your magazine the bottom is angled so when you attach a competitors extension, it is not parallel with the column of cartridges in the magazine. This probably works fine for +2 rounds, but it would not work for much if any more. They decided to do it right, and cut the attachment rail