Springfield Armory's Kuna is a 9mm roller-delayed PDW design, now paired with an integrated Tri-Lug suppressor-mounting system, allowing compatible suppressors to be installed and removed without tools, using a push-and-twist connection. I don’t have a Kuna, but I have the tri-lug system on a few similar guns and it works great. Springfield Armory Kuna @ TFB:TFB Review: Springfield Armory Kuna 9mm PDW PistolPOTD: The HS Produkt Kuna 9mm & .40 S&W Submachine GunsPOTD: Suppress Your Springfield Kuna The upper receiver is monolithic aluminum, as usual, nothing has changed there, and the design keeps its full ambidextrousness and ships with two 30-round magazines. Two primary configurations are offered, one with a bare Picatinny rail at the rear of the receiver, and one with a side-folding Strike Industries FSA brace mounted. Both tri-luggers are also available as low-capacity variants with 10-round magazines for areas with capacity restrictions. Springfield includes a FIRSTLINE program option offering discounts to qualified professionals. Springfield Armory Kuna Tri-Lug 9mm Specifications:Caliber: 9mm ParabellumBarrel: 6.6" with integral Tri-Lug mountsUpper receiver: Monolithic aluminumAction: Roller-delayedControls: Fully ambidextrousMagazines: Two 30-round (five 10-round with low-capacity variants)Configuration options: Bare rail or Strike Industries FSA side-folding braceMSRP: $1,179 (bare), $1,330 (FSA-braced)UPCs: KN9069BTL (706397000882), KN9069BTL-FSA (706397000899), KN9069BTLLC (706397010980), KN9069BTLLC-FSA (706397011055)Find out more here: https://www.springfield-armory.com/kuna-series-pistols/kuna-pistols/ Does the shift to Tri-Lug mounting change your approach to your suppressor inventory? Or do you prefer the normal factory 1/2×28 threaded barrel? I have both attachment systems on other 9mm PDWs, and if I were to answer the question, I couldn’t really tell if I have a preference. Both work a lot better than most (or all) Quick-Detach systems, especially once they get used and dirty.