# Gun thread of SRS

**URL:** https://forums.speedlife.net/t/gun-thread-of-srs/266038
**Category:** Shift518 Automotive
**Created:** [January 17, 2013, 5:32am UTC](https://forums.speedlife.net/t/gun-thread-of-srs/266038 "2013-01-17T05:32:17Z")
**Posts on this page:** 1
**Showing post:** 147

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### Author: ![Cossey](https://avatars.discourse-cdn.com/v4/letter/c/3ec8ea/32.png) [@Cossey](https://forums.speedlife.net/u/Cossey)
#### Post date: [November 7, 2013, 7:43pm UTC](https://forums.speedlife.net/t/gun-thread-of-srs/266038/147 "2013-11-07T19:43:31Z")

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> [@FS: 1997 GMC Yukon](https://forums.speedlife.net/t/fs-1997-gmc-yukon/53603/3):
>
> Anyone have a set of 556 & a 223 go/no-go gauge set I can borrow?
> 
> thanks in advance

What particular rifle is it for? If you bought a barrel that has a barrel extension on it (what has contact with the bolt face) you’re almost always perfectly fine. I think I only checked head spacing once on my… Old… AR builds and all were fine.

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