Description
Drop in direct replacement 3-lug barrel for your Springfield Kuna. As compared to the factory Kuna barrel with a thread on type 3-lug adapter installed, our integrated 3-lug barrel is -0.3″ shorter in overall length, but with +0.7″ more rifling (shorter OAL barrel system, yet higher velocity). Functional ball end cuts at the muzzle act as carbon scrapers cleaning your suppressor mount each time you twist on/off. No moving parts or threads, just a simple bomb proof solution for anyone tired of checking torque on their muzzle devices or thread protectors (HK Navy style design).
Chambered in 9×19 with a twist rate of 1:10. Made from 4140 Chromoly and finished in black nitride. Designed and Manufactured completely in USA. 922r Compliant. Please note there is a specialized tool required to remove and re-install the factory barrel nut. If needed we do make a tool here: Kuna Barrel Nut Tool.
- Integrated 3-Lug Barrel for Springfield Kuna (HS Produkt)
- 6.7″ Overall Length with Light Profile
- Ball Cuts at Muzzle Reduce Carbon Buildup in Suppressor Mounts
- 4140 Chromoly Steel
- 1:10 Twist
- Barrel Weight is 6.7oz (OEM Barrel+Brake is 7.4oz)
- Black Nitride Coated
- 922R Compliant, Made in USA













Jason (verified owner) –
Received the barrel and the recommended tool today. You will NEED the tool 100% if you don’t already have one. The process to install the new barrel can be challenging without the appropriate hand tools. T10 torx head bit with a slim extension rod is necessary. I recommend an 8in extender to be safe. The barrel nut tool requires a 7/8in socket or wrench. I tried getting if off by hand, I’ve done many barrel installs and couldn’t get it off which resulted in me using the impact and giving it a few ugga duggas and the nut came off just fine afterwards. The screws used by Springfield will strip easily if not using a quality T10 torx.
I plan to shoot suppressed 90% of the time and that is why I elected to go with the 3-lug barrel instead of the 3-lug muzzle device.
Matt Weaver (verified owner) –
Installed yesterday. Youtube has a walktbough video for installation. Test fired great! The kuna barrel tool also sold by HBI is a must have. Many thanks