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Below is my original post from Carrera's LEM conversion video post which was extremely helpful to me. At end of post are questions regarding hammer springs available for HK45c. Not experienced in posting on forums and not sure how to link. I purchased two guns, one LEM (AK) and one V1 (BB), both factory new - I did not change out either hammer spring the LEM spring appeared to be powder coated black and identical to the hammer spring I received in LEM light kit from HK Parts. The V1 hammer spring is a gold color and appears to be a gold color. Apologize for long post..... any input appreciated.
"First time post, have been more of a stalker on the site for quite some time. Would like to thank Carrera and BigBore for their posts on LEM conversions along with the many other members of this site. Because of BigBore's posts I decided to make LEM light conversions on my LEM P2000sk's over Thanksgiving while wife was out shopping - she started at 10pm Thanksgiving night and returned 5pm next day without mother-in-law. Had about one hour of patient frustration with the first TRS but managed two others in about half the time. Regarding the LEM, I had never measured the trigger weights on my P2000sk's but like the idea of the LEM trigger. I have 1911, XD/XDM's, PPS and G26 and have nothing against any of these triggers and target shoot all of these guns better than the LEM - until conversion to the LEM light and now would consider myself equal with all.
In fact, I liked the LEM light so much better I ordered two HK45c's for Christmas - one advertised on GB as HK factory "lem light match trigger" and a V1. I put 100 rnds through each and really enjoyed the V1 trigger but not as much as my LEM lights. I am not sure what "lem light match trigger" was supposed to mean but it was far from being light. I eventually ordered a LEM light conversion kit for the V1 and additional set of light springs (TRS, FPBS) for the LEM. Last Friday night I began to prepare for the conversions by printing out instructions, etc, as the wife was planning another shopping trip on Saturday - see a theme developing? Low and behold while I was printing out instructions I ran into Carrera's post and what a blessing.... I ran my laptop with video while doing the full LEM conversion and cannot imagine how that day may have turned out without it. I did run into issue by either incorrectly assembling the cocking piece or hammer strut. When I had everything back together I tried to rack the slide and was a big no-go and pretty much locked up. After a little investigation and video replay I did a complete disassembly/reassembly with much more success. For the other HK45c which was already LEM, I replaced with TRS and FPBS with light springs from HK Parts. What I pulled out of this gun appeared to be a light FPBS and heavy TRS.
Now here is where I need a little help. When I did the light conversions on my P2000sk's all triggers felt very consistent and much lighter, not sure I would want any lighter. In comparison the HK45C's yo yjr sk's, the V1 is only slightly heavier but the 45c which was originally LEM seems a good 1-2 lb heavier even with the light springs installed? When dry firing you can both feel and hear a difference between the two 45c's. I removed the back straps on both guns and noticed that the hammer springs are different - both are original as purchased. The hammer spring on the V1 original model appears to be a lighter spring and has gold color. The hammer spring on the gun purchased as HK factory "lem light match trigger" appears heavier and is definitely black in color. I am confident that the black hammer spring is cause of the heavier trigger.
Can I change out to lighter hammer spring without concerns over light hammer strike? Are there variations in factory hammer springs between factory V1 and LEM? Again, thanks to everyone on this site, I really appreciate the amount of expertise that is shared."
"First time post, have been more of a stalker on the site for quite some time. Would like to thank Carrera and BigBore for their posts on LEM conversions along with the many other members of this site. Because of BigBore's posts I decided to make LEM light conversions on my LEM P2000sk's over Thanksgiving while wife was out shopping - she started at 10pm Thanksgiving night and returned 5pm next day without mother-in-law. Had about one hour of patient frustration with the first TRS but managed two others in about half the time. Regarding the LEM, I had never measured the trigger weights on my P2000sk's but like the idea of the LEM trigger. I have 1911, XD/XDM's, PPS and G26 and have nothing against any of these triggers and target shoot all of these guns better than the LEM - until conversion to the LEM light and now would consider myself equal with all.
In fact, I liked the LEM light so much better I ordered two HK45c's for Christmas - one advertised on GB as HK factory "lem light match trigger" and a V1. I put 100 rnds through each and really enjoyed the V1 trigger but not as much as my LEM lights. I am not sure what "lem light match trigger" was supposed to mean but it was far from being light. I eventually ordered a LEM light conversion kit for the V1 and additional set of light springs (TRS, FPBS) for the LEM. Last Friday night I began to prepare for the conversions by printing out instructions, etc, as the wife was planning another shopping trip on Saturday - see a theme developing? Low and behold while I was printing out instructions I ran into Carrera's post and what a blessing.... I ran my laptop with video while doing the full LEM conversion and cannot imagine how that day may have turned out without it. I did run into issue by either incorrectly assembling the cocking piece or hammer strut. When I had everything back together I tried to rack the slide and was a big no-go and pretty much locked up. After a little investigation and video replay I did a complete disassembly/reassembly with much more success. For the other HK45c which was already LEM, I replaced with TRS and FPBS with light springs from HK Parts. What I pulled out of this gun appeared to be a light FPBS and heavy TRS.
Now here is where I need a little help. When I did the light conversions on my P2000sk's all triggers felt very consistent and much lighter, not sure I would want any lighter. In comparison the HK45C's yo yjr sk's, the V1 is only slightly heavier but the 45c which was originally LEM seems a good 1-2 lb heavier even with the light springs installed? When dry firing you can both feel and hear a difference between the two 45c's. I removed the back straps on both guns and noticed that the hammer springs are different - both are original as purchased. The hammer spring on the V1 original model appears to be a lighter spring and has gold color. The hammer spring on the gun purchased as HK factory "lem light match trigger" appears heavier and is definitely black in color. I am confident that the black hammer spring is cause of the heavier trigger.
Can I change out to lighter hammer spring without concerns over light hammer strike? Are there variations in factory hammer springs between factory V1 and LEM? Again, thanks to everyone on this site, I really appreciate the amount of expertise that is shared."