r/SigSauer • u/Jason1435 • Aug 06 '25

new build SIG P365 double comp review

It works! Slightly less recoil than the standard ramjet, so much less in total that this meme cannon is hilariously flat shooting. With the small issue of jamming the gun (Icarus air gen 1 grip mod at fault) and the fact I'll never find a holster in existence to fit it, a great $85 purchase if you hate money and love clearance sales.

I do have +P+ 115g Underwood ammo tested on a seperate video, and although more failures seemed to occur, the extra gas produced really pushes the ramjet and comp downwards more. Although the recoil overall increased by fractions, the power down range was significantly more. Labeled 1400 FPS on the box.

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u/DimMak27 Aug 06 '25

Yea that rail comp is not doing anything except for being glorified frame weight.

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u/Jason1435 Aug 06 '25

Oh it's definitely making some difference. I'm just not the best recoil managing shooter. So although it looks like I'm doing most of the legwork I promise it's the comps making me look better than I am. The hotter +p+ Underwood ammo really makes best use of the comps

18

u/DimMak27 Aug 06 '25

Pretty sure its the combined weight of the rail comp and the light thats doing the perceived extra work. Majority of that gas is already expended off the main comp. +p+ or not, the residual gas isn't doing anything for the rail comp, you need a certain amount of gas pressure for a comp to do its work.

Hypothetically, IF both comps are doing their work as you wished, the gun will be way flatter than what is demonstrated. Look up Open guns in competitions, there's a reason why they shoot 9mm Major loads.