Drag to turn9mm pistol and carbine suppressor
Proton Sidearm
$349Piston and fixed spacer included
9mm|7 in
For the handgun on your hip and the carbine in the safe. The piston and the fixed spacer come in the box.
Colorway BlackSold out
Black is sold out in every size. Desert Sand and Grey are coming soon. Ships to any licensed dealer in your state.
Overview
9mm pistol and carbine suppressor
Proton Sidearm is the 9mm can. On a pistol it runs with a Pion piston in its booster, so the slide still cycles. On a carbine or a fixed-barrel gun, swap in the Pion Fixed spacer.
Most brands sell the piston and the spacer as extras. Both come in the box here, so one can covers every 9mm handgun and carbine you own.
Pistols
With a Pion piston: Glock, Sig P320 and P365, M&P, CZ, Walther, HK, Springfield.
Carbines
With the fixed spacer: Ruger PC Carbine, CZ Scorpion, Sig MPX, AR9.
Nothing extra to buy
The piston and the spacer ship with the can.
Specifications
Proton Sidearm specs
Sound numbers are published with the test method, the ammo and the host, or not at all.
| Caliber | 9mm, .380 ACP, 5.7x28, .22 LR |
|---|---|
| Material | 17-4 stainless baffles, 7075 aluminum tube |
| Mount | Pion piston or Pion Fixed spacer1-3/8x24 rear thread |
| Diameter | 1.375 in |
| Length | 7 in |
| Colorways | Black, Desert Sand, GreyBlack sold out in every size · Desert Sand and Grey coming soon |
| Service | Takes apart for cleaning |
| In the box | Can, Pion booster with 1/2-28 piston, 1/2-28 fixed spacer, manual |
Before you buy
How buying a can works
Full buying guideCheck your state
Suppressors are legal to own in most states. Eight states and D.C. ban them for civilians.
Pick a dealer
Suppressors ship only to a licensed dealer (FFL/SOT) in your state. Never to your door.
Do the paperwork
A background check always. Whether you also file a Form 4 depends on your state right now.
Pick it up
Collect your can at the dealer. Mount it, and shoot it.



