Will reducing the barrel length of a Rem 7400 affect its reliabilty?

[geologist]

Will professionally shortening a Remington 7400 harrel from 22" to 18.6" and re-installing the front sight affect its gas operated reliability?

 

[4fifty8]

My guess being a gas operated action might need 22" barrel design volume to cycle.

 

[tiriaq]

Remington did make carbine versions of its autoloading rifles.
The gas system is the spigot type - a short spigot projects back from the gas block. Fits into a hole in a block in the front of the operating slide assembly. The slide is blown back off the spigot. A short term gas impulse. I doubt that shortening the barrel would make much difference.

 

[FatCatsDad]

I had one years ago cut and crowned to 18.75.
No issues.

 

[A&Shuntr]

None what so ever, often improves accuracy.

 

[jjdesfor]

If anyone is looking I have a 7400 carbine posted.

 

[geologist]

Remington did make carbine versions of its autoloading rifles.
The gas system is the spigot type - a short spigot projects back from the gas block. Fits into a hole in a block in the front of the operating slide assembly. The slide is blown back off the spigot. A short term gas impulse. I doubt that shortening the barrel would make much difference.

Could the 7400 action be described as a direct impingment?

 

[tiriaq]

Close, but not really. The slide does overlap the spigot. Basically, the spigot is the piston, the slide is the cylinder. The Mini-14 series uses a similar system, although that spigot really looks like a piston.

 

[mike t]

I've shortened a couple model 7400s in the past and currently have one that I had shortened to 19 inches with zero issues.