A&G Pachmayr Extension Fits G17, 22, 31, 37 Magazines in G26, 27, 33, 37 pistol
A&G Pachmayr Extenders are high impact polymer collars which slip over full size magazines.
When full sized magazines are used with mini Glocks the A&G Grip Extension fill the gap between the bottom of the gun and the base of the magazine.
This useful addition helps eliminate flinching and increases comfort and accuracy giving the shooter the grip and feel of its larger counterpart.
Easily installed or removed, they work equally well with any full sized magazine, 10 round or Hi-Capacity.
This A&G Grip Extension AG-1722 will adapt a G/17,22,31 magazine to fit a 26,27,33 pistol, it also works on a 37 magazine to fit a 39 pistol.
GOOD PRODUCT FITS PERFECTLY,FAST DELIVERY.
Good service. Had to return, bought a different gun.
The manufacturer doesn't list the G37/39 on the packaging, and the title here (at the time of this review) is slightly incorrect. It should read "A&G Pachmayr Extension Fits G17, 22, 31, 37 Magazines in G26, 27, 33, 39 pistol." It fits my G39 well, and prevents the pinch I used to get using naked G37 mags in it.
Overall the quality and fit of this product is good...the one thing I noticed is when to tighten the up the allen head screw the back of the extension tilts up but it's something I can live with..