[bumper]

BarSto makes excellent quality barrels, threaded as well. They are not polygonal rifling. Curious as to the reason you want polygonal rifling?

 

[Ringwraith]

Check lothar Walther they make em for Kahr and HK iirc

 

[yellowlt7]

... They are not polygonal rifling. Curious as to the reason you want polygonal rifling?

Same here.

 

[Twister]

BarSto makes excellent quality barrels, threaded as well. They are not polygonal rifling. Curious as to the reason you want polygonal rifling?

Not speaking for the OP but proponents for polygonal rifling say it deforms the bullet less so it's more accurate and it makes less friction so velocity is increased as well.

IMO it's easier to clean.

Here's a good article that says more than my abbreviated answer

https://bearingarms.com/ccantrell/2...ullets-conventional-versus-polygonal-rifling/

 

[Lane73]

https://en.m.wikipedia.org/wiki/Polygonal_rifling#Advantages
Providing a better gas seal around the projectile as polygonal bores tend to have a slightly smaller bore area, which translates into more efficient use of the combustion gases trapped behind the bullet,[4] slightly greater (consistency in) muzzle velocities and slightly increased accuracy.[1]

H&K, Glock and others use hexagonal and octagonal rifling

 

[NeedsMoreMillimeters]

Not speaking for the OP but proponents for polygonal rifling say it deforms the bullet less so it's more accurate and it makes less friction so velocity is increased as well.

IMO it's easier to clean.

Here's a good article that says more than my abbreviated answer

https://bearingarms.com/ccantrell/2...ullets-conventional-versus-polygonal-rifling/

Yes, basically all this. Especially the cleaning. I have been trying to switch to all poly handgun barrels since I noticed the difference on my HK and Glock. In theory barrel life is also longer (I generally shoot 3-400 9mm a week, so over time this could be a factor).

 

[Boredmuse]

Arent you not supposed to shoot lead bullets out of octagonal rifling?

 

[Twister]

Arent you not supposed to shoot lead bullets out of octagonal rifling?

That is correct. In the article I posted above it explains why.

 

[7.62Kolectr]

PreBan Hk rifles with poly bores are highly desired, command premiums and shoot better than the later ones.

 

[BBMW]

Generally you don't see polygonal barrels from custom makers. They need to be hammer forged, and that equipment is both vastly more expensive than the equipment to do button or cut rifling that the custom makers usually use. it's also much more suited to volume production runs. Both of these factors make it much more suitable for large scale gun manufacturers than smaller custom shops.

 

[KurtP00]

Signed into this forum doing some searching. I’m looking for someone who makes polygonal rifled barrels for sigs, but not having any luck.

Anyone know of any? I’m looking for the velocity increase.

 

[hardluk1]

But you can shoot Hi-Tek Coated lead bullets in them and not have to deal with bullet lube and fingers stay a bit cleaner too .

 

[Dlarrym1]

Same here.

Polygonal barrels/ rifiling is superior... duh... thats why H&K, IWI, Desert Eagle, Walther's, Glocks, (all of them), some CZ, a Jericho 941or MASADA uses Polygonal barrels.. its not new. Some rifles are Polygonal as well. I think the CZ BREN has Polygonal rifiling.. BRNO uses Polygonal barrels.

They are super easy to clean. They give you slightly higher muzzle velocity... They are usually more accurate but not always but are def not ever worse then traditional.

You guys asked... theres your answers... i dont know about KAHR byt they may have Polygonal barrels too.

The best