So why did you stop at not installing a tungsten filled carrier? Like a heavy buff in a M16, isn't the whole point of the loose tungsten in the carrier to act as a delayed weight to counter act bolt bounce? I've seen the same light strikes on a BPP-23E. Carlos for got to put tungsten in the carrier. The owner got a MM23 carrier that had tungsten granules in it and problem solved. Isn't all HK machineguns supposed to have the tungsten granules in the carriers? If the PTR full auto carriers don't have tungsten granules, no wonder you're getting bolt bounce.I tried everything you did except a tungsten filled carrier before I finally gave up I even tried a Rhinemetal and a shortened stiffer locking lever spring.........I believe the whole issue is bolt bounce
Edit (and for OP clarification mine was a gen 1.5 not the PDW but same issue on the primer strikes)
Same Rhinemetal worked in a 91 at the time......other 32's working w/o one..........if I try another 32 in future I will but I am not sure that is a 100 percent solution..........every other Roller Lock I have works fine w/o tungsten carrier........YMMVSo why did you stop at not installing a tungsten filled carrier? Like a heavy buff in a M16, isn't the whole point of the loose tungsten in the carrier to act as a delayed weight to counter act bolt bounce? I've seen the same light strikes on a BPP-23E. Carlos for got to put tungsten in the carrier. The owner got a MM23 carrier that had tungsten granules in it and problem solved. Isn't all HK machineguns supposed to have the tungsten granules in the carriers? If the PTR full auto carriers don't have tungsten granules, no wonder you're getting bolt bounce.
Scott
I had a similar issue but I couldn't figure out if it was bolt bounce or if the bolt was dragging and just not closing all the way into battery. My primers were barely touched yours look much better. Do you think an extra-power hammer spring might help?
coolhand: hang in there bro. I had the same light primer strikes with Golden Tiger when testing with the PTR semi carrier and their S-U-O lower. I purchased a used G3 FA carrier and an HK#15 LP. At the time I suspected, from viewing other threads, that the PTR carrier locking lever spring was weak and the culprit. Since these changes she devours everything including 72 round beta mags! I also found that their SUO lower was not good. Can't remember why. I switched to a c/p SEF.
As I recall the bolt locking spring is modified in the 32 which is not a problem for a semi, but wold be in auto. This is an "auto" problem. So to me the locking lever spring and even more so the tungsten in the carrier would be must haves for full auto function.Same Rhinemetal worked in a 91 at the time......other 32's working w/o one..........if I try another 32 in future I will but I am not sure that is a 100 percent solution..........every other Roller Lock I have works fine w/o tungsten carrier........YMMV
OP, I have the same set up as you and the same issues. I came across a thread that mentioned replacing the bolt locking spring and replacing the hammer spring as offered by HK parts. When the parts came and I installed them, it was like I was shooting another weapon. I feel your pain...Try these two. if these don't help than take the boat out.
Good luck!
I had talked with Jeff he though the problem would be the locking spring as well I sent him the carrier and he modified the spring...........As I recall the bolt locking spring is modified in the 32 which is not a problem for a semi, but wold be in auto. This is an "auto" problem. So to me the locking lever spring and even more so the tungsten in the carrier would be must haves for full auto function.
Scott
I had talked with Jeff he though the problem would be the locking spring as well I sent him the carrier and he modified the spring...........
I thought the carriers had GOLD in them!!!
HA HA HA
