OSA - 17 Design Lowers - Completed Builds Thread

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okieshooter777

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Got my 17 design folder assembled.

loving the design, but I cannot figure out while it’s not ejecting and chambering a round after a shot.
It’s not jaming I can pull charging handle and reload just fine.

it’s a 10.5” upper, and the upper was already assembled and on another lower prior and fired fine.
What am I missing??
Attached a couple pictures to just show it.
 

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Shinneryfarmer

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Got my 17 design folder assembled.

loving the design, but I cannot figure out while it’s not ejecting and chambering a round after a shot.
It’s not jaming I can pull charging handle and reload just fine.

it’s a 10.5” upper, and the upper was already assembled and on another lower prior and fired fine.
What am I missing??
Attached a couple pictures to just show it.
Not exactly sure how that folder is set up, never seen one physically. But bought a add on folder that I had same issue with. It turned out to be a issue with buffer retainer sticking up a little high. When you pulled charging handle back it slightly lifted bolt over it and worked fine but would not cycle when fired. Just something I ran into. Hope it helps or rules it out anyway.
 

dlbleak

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Got my 17 design folder assembled.

loving the design, but I cannot figure out while it’s not ejecting and chambering a round after a shot.
It’s not jaming I can pull charging handle and reload just fine.

it’s a 10.5” upper, and the upper was already assembled and on another lower prior and fired fine.
What am I missing??
Attached a couple pictures to just show it.
Did you build the upper or buy it complete?
 

dlbleak

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I’ve got a 300 pistol upper. Can’t decide if I want to build it as a pistol, put a rifle barrel on it or SBR it. Choices...
 

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