HK416, Colt M4 Spring Kit - .22LR - Match Trigger Upgrade

As fun as they are out of the box the trigger is quite stiff and clunky. I don?t have a trigger pull gauge, but it reduced pull by half. I also hit a couple contact surfaces with a polishing pad on the Dremel, no material was removed, just cleaned up. You can do this by hand too. This is a great upgrade that anyone can do at home.

Excellent Product. Reduced the trigger pull. I don't have any idea how much but, you can definitely tell the difference.

This spring kit fits my Hammerli TAC R1 mini rifle perfectly. While I don't have a trigger pull gauge to take an actual measurement there is a noticeable improvement in trigger pull weight with no light strikes on the cartridge rim so you cant argue with that. Anyone who can use a screwdriver and allen key can fit this although a few extra fingers wouldn't go amiss. All in all a great upgrade to your rifle and at this price its a no-brainer.

Does what it should! Wasn?t too hard to install.

Springs were as advertised but I'm not a gunsmith and my hk416 22lr is the a different model with a black trigger housing. So hk parts install video is a bit outdated. New housing bolts are star/torx 10 not 2.5mm hex. Even while holding the tension nut for large spring per hk parts video it launched twice and 2nd time it was lost forever. So I had to send gun back to h&k for repair. Also 2 things of note is that this trigger upgrade voids your warranty and the reason the original trigger pull is so bad is that it had to be bad for ATF points system to allow its importation per Heckler and Koch USA

n training i noticed 2 fingers to pull trigger .....now only one little finger also this makes the rifle super accurate

What a difference this makes! Instead of pulling the trigger I can now squeeze the trigger...

Great quality product and major improvement to the trigger.

Great product highly recommend

Dropped the pull about 4 pounds down to 5.5-6# The factory trigger pull on my HK-416 and Hammerli Tac were 9-10#. Makes the guns much more fun to shoot and accurate without the super heavy trigger. Installed myself, little springs flying around my desk. Not to hard, install video is great help from HK on YouTube. I would recommend, inexpensive upgrade you can do yourself.