TM MP7A1 GBB - Bolt fails to lock back (sometimes)

[AnkleSpankle]

Hi all,

I've not had my MP7 long (bought brand new, it's not actually left the house yet) however I have noticed that recently it's failing to lock the bolt back when the mag is empty.

It seems if I enter the mag already empty, it takes about two to four shots before it locks back; on the other hand if it hasn't locked back I can pull the charging handle back and the bolt will lock.

Emptying a full mag or one with BBs in seems to allow it to work as expected.

Is this an issue with the gun or the mag?

[Scotty H]

Re: TM MP7A1 GBB - Bolt fails to lock back (sometimes)

I've had mine a couple of weeks and it locks back every time mate. I'm sure it'll be something easy for you to sort.

[AnkleSpankle]

Re: TM MP7A1 GBB - Bolt fails to lock back (sometimes)

Okay, seems that even if the mag had BBs in it the bolt doesn't lock back.

I would like to think it's the mag, what do you guys think?

Manually pulling back he charging handle always causes the bolt to lock back if the mag is empty.

[AnkleSpankle]

Re: TM MP7A1 GBB - Bolt fails to lock back (sometimes)

So after countless reloads with varying levels of ammo and gas, I believe I have found the problem.

Me.

I don't think I've been putting the mag in with enough force, potentially allowing the mag to not sit correctly. I've just done about 13 empty reloads, 6 partial mags dumps with varying levels of ammo and two full mag dumps and the bolt has locked back every time.

Remember kids, don't tap it.. WHACK IT!