Ask the Community
Get answers from fellow firearm enthusiasts and share your knowledge with the community.
You'd want to buy a non ported barrel, not slide. I have the .40 version of this gun and if shooting indoors (or in the dark) there is a definite muzzle flash. If using a non ported barrel there is none. The slide doesn't get any warmer with porting, the ports just allow gasses to escape out the top quicker to help with recoil.
William, this model has both a Ported Barrel and Slide. The Ported Barrel would damage a non ported slide but you could just purchase a non ported barrel and be just fine. Porting does not make the slide any hotter but does increase muzzle flash. --- https://www.blacklistind.com/product/mp-9-shield-m2-0-drop-in-ultra-match-barrels/
Ported barrels and or slides will not run any hotter but will cool down faster then non ported. There are a ton of options for replacement barrels standard one here https://www.midwestgunworks.com/page/mgwi/prod/3007072