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Seen Silencer Co for years, never purchased their products until building a custom P320. For the price and performance, this is a very nice barrel. My compensator mates and times nicely to my slide with no visually glaring gap, and the barrel is nice and accurate. Was unaware of the LCI on the top rear of the hood, but this wouldn't have effected my purchase choice. Some dislike this, I personally don't have an issue with it and I rock a 508T on the P320 this barrel is in. No real issues with residue on my optic.
Purchased this over the Agency 419. Similar in design, but had my eyes set on the double port from Agency. Unfortunately there's no sign for when those will be in stock. Felt like this comp for a custom P320 would be comparable in both style and performance due to this having a nice large single port. This comp is awesome. Using all genuine Sig internals on a WC full size grip module. This comp cycles my compact slide with compact recoil spring assembly and a Holosun (not that it weights much) attached too. Port doesn't kick gas back as the shooter and has a nice added bonus of not only reducing perceived recoil, but also keeping fouling off my weapon light. Solid purchase for any custom P320. Timing is perfect and although this is secured by small grub screws, a little blue loctite has it mounted with zero movement after about 400 rounds.
Picked up 500 rounds during the recent ammo sale. Fired through new custom build flawlessly. Very consistent, reliable ammo. Only shot about 350 of the 500, but zero issues with any cartridges this far.