Joe from United States, CO Public Profile

Great upgrades for the Mark IV (22/45) across the board. Grip is a good material and substantial enough to get a secure grip on the firearm. The OEM thumb safety is a poor design in my opinion and the extended safety paddle really helps. The forward gas pedal is super useful, but it is oversize and in some ways comes out too far off the side of the gun, will require that I find a custom holster and any holster I get will have to be a weird design due to the width of the thumb ledge.

I prefer extended mag bases in general as they give you more to grip during reloads and it’s easier to ensure magazines are seated properly (compared to flush fit bases); especially on the Mark IV where the magazine enters at a particularly steep angle and the mag well is pretty unforgiving. After purchasing and using this product I realize that I would prefer a full length base pad, rather than just the hooked end style. The extension at the front, while it gives the grip extra length (not something I needed), doesn’t make reloads easier as you’re pushing from the front when the magazine needs to be pushed from the back due to the steep angle of entry. Could have potentially anticipated this based on the photos, but it’s still an upgrade from the regular mag bases and will suit my needs for now. Looks-wise it definitely gives the gun an evil villain vibe, but that’s consistent across the Tandemkross aftermarket lineup for Mark IVs

Maybe not the most aesthetically pleasing upgrade, but perfectly functional. Makes charging a breeze. No more pinched fingers!