Originally Posted By Pat_H:
Originally Posted By bloodsport2885:
And Ford wouldn't warranty a transmission rebuild you did in your front yard either. So what? Once you modify a product, you're on your own.
As good as you think he is with tools in relation to small engines and basic machinery principles, he's not a gunsmith and accepted the liability as soon as he decided to do it himself. He simply did not have the knowledge and experience necessary to work on this specific type of equipment.
If he had used a licensed gunsmith to do this job he would either have a rifle properly disassembled and reassembled or he would have recourse with the smith's insurance. RRA wouldn't warranty it either if the smith screwed it up.
It's not a "screw up", it's standard disassembly procedure with the proper tools. If I remove the bolt and find it improperly made, it's a factory defect, not mine. And, since I was an army unit armorer, I can tell you that using Loctite to install the receiver extension tube is improper assembly.
So, let's try again, shall we?
Anyone else have this issue?
Being a military armorer means you have experience working on military weapons, not EVERY AR pattern rifle there is.
Outside of US military standard issue there's not "standard" for disassembly or assembly. Which is why most of the military "armorers" I know are clueless about weapon design, repair, and operating theory and can do little real armorer's work outside of swapping the sling swivel next to the front sight from left to right. The guys I know that have known the most about fixing guns had multiple certifications from various manufacturers including BM, Colt, and Sig. Learning some new technique or piece of theory with each class. I know incredibly knowledgeable guys in the industry who do things many "book smart" people would think backwards. I've also followed come companies instructions only to find out the instructions result in bad things (torque values).
Many reputable companies do things differently for a myriad of reasons.
KAC uses loctite on their receiver extensions and not staking, as well as their URX rails and barrel nuts.
JP doesn't stake their carrier keys.
Different companies use different compounds for putting the bbl nut on the receiver, everything from CLP to Aero grease.
You being a unit armorer means jack squat. A real armorer knows to use some heat to loosen parts before destroying them, regardless of knowing if there's a thread locking compound.