The B14r magazine extension will give you a total 12 rounds. They also add weight and a larger gripping surface to the magazine.
| Weight | .2 kg |
|---|---|
| Dimensions | 9 × 9 × 5 cm |
| Colors |
BLACK, Olive Drab Green, Orange |
Theirs a you tube video defiantly watch before trying
It was a little challenging to install without spring binding. Then would not accept the extra two rounds. Back apart and found the “legs” of the stock cartridge follower were binding against the extension inner piece. A little filing of the extension inner piece to clear the legs and then would allow the follower to fully compress and accept the two extras. Works fine, after that.