My new AR build is short stroking.

[Honey Badger]

I think its the cheap ammo I am shooting. BUT would anyone have any idea as to why a brand new build would be short stroking??? here is what I have.

12 inch free float quadrail
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M4 Barrel
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Standard Gas Tube
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LO Pro Gas block
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New Frontier Complete Lower (Aluminum NOT Polymer)
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A2 Flash Hider
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I am shooting Herters or wolf classic. I can't tell what it is by looking.

THanks.

Mike

 

[streak]

I would be willing to bet that the gas block is not perfectly lined up

 

[Honey Badger]

Okay I'll check it out. Thanks.

 

[hnugen]

What brand barrel and what is the port size? Check gas block alignment. Some guns just short stroke when new. Generously lube a new weapon before you shoot it and it's always a good idea to run first a batch of brass ammo through it first. Underpowered crap ammo could be likely. I've had steel cased not cycle properly when it gets close to freezing temps but cycled properly in the same gun on a warm day.

 

[kpk]

What's it doing? If its not the gas block its probably over gased. What bcg and buffer?

 

[Honey Badger]

I believe the BCG is a Del-Ton and and the Buffer was with the complete lower that I bought from Pinkhamr. I am assuming it is New Frontier.

 

[Honey Badger]

What's it doing? If its not the gas block its probably over gased. What bcg and buffer?

Looks like it is only cycling about 1/2-3/4 as far as it should.

 

[Phildo64]

Might need a lighter buffer?

 

[SMS]

Does it have a rifle buffer? Looking at that A2 stock, I would bet it does.

Carbine gas system with a rifle length buffer shouldn't cause a problem, but....

If you have a buddy with a carbine buffer/lower/extension set up, you could swap lowers and see if she still short strokes.

 

[Honey Badger]

Thanks guys I will keep at it. I appreciate the suggestions.