Glock Factory Barrel 6" Hunting for G20
1 × $175.00 
Double Diamond 10mm to .40 S&W Conversion Barrels
1 × $169.99 
Double Diamond .45ACP to 10mm Conversion Barrels for Glock
1 × $59.95 Subtotal: $404.94
$200.00
***Bar-Sto Barrels are semi drop-in. Your barrel may not drop directly into your slide without proper fitting from a gunsmith.***
The barrels are machined, bored, and rifled completely in their own shop. Accuracy is excellent even when compared to target grade barrels. You will feel the difference in quality just by holding this barrel in your hand compared to the Sig Sauer factory barrel.
Not available for export outside the United States.
Hank –
I purchased the Bar Sto match barrel for the fullsize P320 and even with crap ammo it grouped under 6” at 25 yards