14.5" Grendel barrel with midlength gas OK?

[m796rider]

Hi all,

I am thinking about cutting my 16" Alexander Arms 6.5G barrel down to 14.5". The barrel has a midlength gas system. Do you think I'll be OK without having to mess with the gas port?

Thanks!

[Heinz57grendel]

or you could sell it to me.

[Beerswimmer]

I had a 14.5 midlength 5.56 that was great, I think it'll be fine.


Now you can get that barrel threaded properly

[LRRPF52]

You'll likely need to open the gas port, especially for cold weather and lighter projo weights.

[Keep The Change]

I know my 5.56 Noveske middy works just fine. However I don't know if there is a difference in gas port size from a carbine to middy on a 5.56. I would think if the gas port size on a 5.56 is the same between the carbine and middy that it would be fine for the 6.5 Grendel.

But like LRRPF52 said, it might have an issue in cold weather.

[m796rider]

Thanks all!

[LRRPF52]

5.56 has way less bore space, so you can get away with a lot more with it compared to 6.5 Grendel or 7.62 NATO.

I have a Model 605 Retro with RLGS and 15.75" barrel that runs great so far, never choked on me yet, but I haven't really tortured it.




I'm thinking about converting it to Grendel for a steel cased blaster, since I rarely shoot it now. If I do that, it will have a concealed MLGS for sure.

[Keep The Change]

Yeah good point on bore space or volume on a 556 versus Grendel. I guess the thought is with the additional volume in the bore the pressure is less than the 556?