I don't suck and HK doesn't hate me.

[SLG]

After much pressure here on PF, I fell inline and decided to get a Hybrid Match LEM on my USP 45 Expert. I sent the gun to HK on Tuesday, it arrived Wednesday and on Thursday, HK called to tell me it was heading back my way. I got home from a trip on Friday, and the gun was waiting for me. Pretty good service!

I have not shot the gun yet, as it is Deer Season, but I will shoot it next week when I'm out of town again. The trigger i kind of ridiculous. It is incredibly good, but also maybe lighter than I would prefer, both for carry and shooting. I've never been afraid of a good double action trigger, and actually like 8-10# trigger just fine. I'll shoot this a bit before I decide, but a standard LEM may be in my future.

All you HK guru's out there: what is the next step back from the hybrid match? The standard LEM? Something else?

[breakingtime91]

After much pressure here on PF, I fell inline and decided to get a Hybrid Match LEM on my USP 45 Expert. I sent the gun to HK on Tuesday, it arrived Wednesday and on Thursday, HK called to tell me it was heading back my way. I got home from a trip on Friday, and the gun was waiting for me. Pretty good service!

I have not shot the gun yet, as it is Deer Season, but I will shoot it next week when I'm out of town again. The trigger i kind of ridiculous. It is incredibly good, but also maybe lighter than I would prefer, both for carry and shooting. I've never been afraid of a good double action trigger, and actually like 8-10# trigger just fine. I'll shoot this a bit before I decide, but a standard LEM may be in my future.

All you HK guru's out there: what is the next step back from the hybrid match? The standard LEM? Something else?

I got rid of the light LEM in my p2000sk for the same reason. Much too light IMO but to each their own. I am not sure what variant the standard LEM is but I have found V2(standard) in the p2000s to be more than acceptable.

[OnionsAndDragons]

SLG,

Probably trying a combo of the heavy TRS and/or firing pin block springs. You could swap out the flat nickel spring, but I like the feel of that part a lot. I'm not sure if they use the reduced hammer spring on the HybridMatch or not, if so, that is an easy way to add a little extra weight. The hammer spring is also not a giant PITA to change yourself unlike the TRS can be.

[GJM]

SLG, the water is warm -- welcome.

Dagga Boy is carrying light LEM, so it is face shooter approved. I am such a nut hugger, I even have Raptor vids playing daily. Kidding aside, I thought it was length not weight that made for trigger safety. I can't shoot a regular LEM as well as the light LEM/match hybrid triggers. I am not preoccupied with splits, but I am not looking to make a trigger harder than (in my opinion) necessary.

[CoGT3]

Pretty sure the hybrid match uses the match TRS found in the match da/sa. The match TRE is supposed to be the lightest so the light TRS might give you what you want. That with the heavy FBS should help also.

Ordered the LEM parts for my 9mm tactical to try. Also got the light TRS to compare to the light TRS.


Sent from my iPhone using Tapatalk Pro

[BCL]

Pretty sure the hybrid match uses the match TRS found in the match da/sa. The match TRE is supposed to be the lightest so the light TRS might give you what you want. That with the heavy FBS should help also.

I've tried the match TRS and regular TRS side by side with the match hybrid LEM and there was only a ~3oz difference in trigger pull weight (using a Lyman digital trigger pull gauge).

Haven't thought about using the heavy FPBS in a USP before, that is interesting and might be SLG's best bet. According to Todd's data on a P30, it dropped the nominal weight by 1.2lbs when he installed the light FPBS, so the reverse may be true in a USP. If so, it should bring the match hybrid LEM trigger on SLG's USP to about 5.5-5.7lbs.

If you install the heavy TRS in a USP with a match hybrid LEM, the trigger pull weight will most likely be 6.8-7.2lb.

SLG - I would start by attempting the heavy firing pin block spring (PN 209962) and see if that raises the trigger weight to your liking. If not, swap back to the original FPBS and install the heavy trigger rebound spring (PN 219441).

[SLG]

Thanks guys, though I'm not sure what language some of you are speaking..:-)

I'll shoot the gun for a bit and then worry about what to do with it.

Is it a big deal (as in needs to go back to HK) to swap a heavy FPBS into the gun? How about the HTRS if that is needed?

[GJM]

I would definitely shoot it some before making changes, as you now have the best hammer fired HK trigger available.

[BCL]

Is it a big deal (as in needs to go back to HK) to swap a heavy FPBS into the gun? How about the HTRS if that is needed?

It's not too big a deal if you are relatively adept mechanically.

You will need the following parts:
3/32" roll pin punch (http://www.brownells.com/gunsmith-tools-supplies/general-gunsmith-tools/punches/roll-pin-punches-prod38883.aspx)
Needle Nose Pliers or the HK Parts TRS tool (https://www.hkparts.net/shop/pc/Trigger-Return-Spring-Tool-For-All-HK-Pistols-200p16031.htm) (the latter is recommended)

If you have the patience to watch youtube videos on the matter:

(3:45 to 4:46 for the FPBS disassembly):

https://youtu.be/pQJZo91oVdI?t=3m45s

(11:06 to 12:39 for FBPS reassembly):

https://youtu.be/jlxzSsa4B10?t=11m6s

(11:00 to 11:43 for TRS disassembly - you can do this step by itself without disassembling the entire frame/lower as shown in the video):

https://youtu.be/pQJZo91oVdI?t=11m

(2:18 to 3:47 for TRS reassembly):

https://youtu.be/jlxzSsa4B10?t=2m18s

Hope this helps.

[Serpico1985]

I just put a LEM kit in my USP 45 full size. I used the lighter hammer spring and the heavy trigger return spring and whatever firing pin block spring was already in the gun. Left the safety off too.

Man, let me tell you, only dry fire so far but this trigger is phenomenal. Super smooth and a gentle rise in weight right before the break. Not a wall, more like a hill, if that makes any sense. Probably around 6lbs total weight and a short reset. Live fire will tell the tale but I'm super stoked about this trigger set up. Almost makes me want to dump the P30L and get a USP9.

I know it's been said many times before and now I have to agree that the LEM in a fullsize USP is the best out there.

[psalms144.1]

SLG, IIRC, the match LEM hybrid has the light trigger return spring, light firing pin block spring, and a lighter mainspring. If you find it's really too light for your liking, it should be easy enough to swap a spring or two to add some weight. I would think the mainspring would be the easiest to replace, followed by the FPBS, followed by the TRS. Let us know how you like it!

[BCL]

I did some spring swapping back in June on three full size USPs with LEM kits. First is a USP40 that started out as a standard V1, 2nd is a USP9 that had a match trigger kit before the LEM conversion, the 3rd is a USP9-SD that was set up nearly identically to the USP9.

Here are the average results, which may help decide which part to install. I have not tried installing the heavy firing pin block spring in a USP, but may give it a try over the next week or two just to satisfy my curiosity. All weights were averaged over 3-5 slow pulls from a Lyman trigger pull gauge:

USP40:
LEM Kit, standard catch, 12lb Wolff Hammer Spring (HS), nickel plated sear spring (NPSS), standard Trigger Rebound Spring (TRS) (PN 214164) = 4lb 4oz on average
LEM Kit, standard catch, 12lb Wolff HS, NPSS, heavy TRS (219441) = 6lb 8oz on average

USP9:
LEM Hybrid - LEM Kit, match catch (catch included in match trigger kit, not sure if it's different from the standard catch, PN 219442), HK 16lb HS, NPSS, match TRS, match trigger (without overtravel stop) = 4lb 9oz on average

USP9-SD:
LEM Hybrid - LEM Kit, match catch, 12lb Wolff HS, NPSS, match TRS, match trigger (with overtravel stop) = 4lb 1oz on average

Since then, i increased my supply of Wolff 16lb hammer springs and installed one in the USP9-SD, which yielded an average pull weight of 4lb, 9oz, the same as on the USP9.

All three have excellent triggers (for an HK) - the USP40 with the heavy trigger rebound spring and 12lb Wolff hammer spring feels like a light DA trigger with an almost imperceptible wall at the end of the pull. The USP9 and USP9-SD feel like your garden variety match hybrid LEM :).

[rayrevolver]

With respect to the Trigger Return Spring.

From user TwoSixy at Pro, TRS Lightest to heaviest:
Match TRS --> V1 TRS --> Light TRS --> Heavy TRS

I never tried the Match TRS and installed the Light TRS for a more positive trigger reset. It is a pain to switch out though.

It would be easiest to mess with heavier hammer springs. I believe the Match HS is 10.5/11 lbs.

[The Apprentice]

For me based on a p2000 the match trs was to light it made the trigger seem to slow. I've never tried a usp but I would imagine it has a similar effect. So that would be where I started if I wanted to add a little weight to the pull.

[Dagga Boy]

SLG, you just need to think a bit different from a threat management standpoint. With the LEM, it is just movement....and their is no increased momentum build up. The DA guns require an building increased pressure. They building pressure is harder to come off of. The positive is it builds to a good break if you are training it right and Wayne uses a good term where you are actually stroking the trigger similar to a revolver. With the LEM...bunch of just movement with no resistance till you get to the engagement. At this point, there is slack and then you hit the break. It is just a different build up. I have found I like the lighter LEM's over time, although I will admit to finding it helpful to learn it on a heavier LEM.

[SLG]

I shot the match hybrid trigger Expert today. Easy gun to shoot very accurately. The trigger is basically a single action with some "no weight" movement leading up to the engagement. Since this is a Super launcher, and it doesn't fit my hand all that well, it is hard to tell much about running the trigger at speed. I'll have to wait for the 9 to do that.

I know it's mechanically safe, but it still seems awfully light to me. More shooting tomorrow.