I've got a few JP builds under my belt. I really like the MKIII handguard system - for the most part. However, lately, some issues have come up. I'm not sure if it's related to a potential QC issue, due to the craziness, or if it's something else.
Normally, when I'm installing the handguards, I can achieve about .010-.020" deviation at any measured point around the OD of the handguard, to the OD of the barrel. However, with my latest build - which is a JP upper and handguard - I'm not able to get closer than .050-.060". This is especially irritating for 2 reasons: 1) This handguard will host a clip on in front of the optic, 2) this handguard sleeves a suppressor. And that's enough difference to be noticeable.
You can really only torque a steel screw in a piece of aluminum so much, before you're gambling with a thread failure. This isn't a case for brute force. For me, there appears to be an issue. And since it's one of the longer handguards, the error will be exaggerated over the length. (the shorter handguards are literally never a problem)
Before I try to contact JP for the issue, just want to make sure that I'm not missing something obvious...
Thanks in advance.