Ar side cocker question

[gwb]

Any idea what the bolt at the rear end of a side cocker upper does?
It's screws in the rear top end where the charging handle would be on a conventional upper. The bolt has a round knurled end which is used to thread it into the hole?

[Lost In The Pits]

Pics?

[kevins750]

That space the bolt occupies is where the gas key slides out of the receiver. It just "plugs" the hole.

[gwb]

I was told that it just needs to be snug, correct?

[gwb]

Sorry LOST, no pics.

[alpha_romeo_XV]

You can buy a replacement plug if you lost the original one. Here is link to MidwayUSA for a spare kit for AR Stoner side charging upper that includes both the plug for the rear of the receiver and the side charging handle.

https://www.midwayusa.com/product/502223/ar-stoner-replacement-parts-kit-for-ar-stoner-side-charging-upper-receiver

[spfabrication]

Keeps the gas out of your face.