AR15 Parts and Accessories by M&A Parts


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I have this problem with a kit I ordered

We'll assist you in every way possible with resolving any problem. We can more effectively manage any situation if you call us immediately upon receipt. YOU MUST CLAIM any shipping damage with UPS immediately upon arrival. If something arrives broken- it happened during shipment. Get on the phone with UPS first! There is no other assistance we can offer- that's how their insurance works.

Here are some common problems and resolutions:

Q: I can't cock the weapon, very hard to pull the charging handle back.
A: You have the hammer spring upside down.

Q: Now it double taps, gives me two shots at a time.
A: You have the disconnector spring upside down.

Q: My Bolt Catch is defective- it broke!
A: No, you dry fired it. Buy a new one and don't do that.

Q: Upon extraction I wind up with 1/2 ripped out shell casings remaining in the chamber.
A: Clean the chamber, if necessary gently buff the chamber area with a light compound such as Flitz. Stop using crappy ammo, lubricate the chamber area correctly.

Q: I am having failure to feed isuues.
A: Try several different magazines and types of ammunition. Collpapsable stock only work on 16" barrels.

That will solve 999 out of 1000 problems, I mean to say- better than nine out of ten, see?

We sell several thousand barreled uppers in any given year. We get more than enough frantic calls from buyers who are certain they have been screwed and bought junk on this, their first ar15 buy. After they calm down and take care to follow the above steps- and other basic instructions on building and operating this black rifle- their problems go away. Unfortunately, for the rare barreled upper that we receive as a return for service, most all are resolved by proper cleaning and lubrication. In the machine shop world, there is no such thing as "one error". When you see one, you see one hundred. With the process that we go through with LMT test firing each upper, this is as rare as a steel penny.

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