No, the TruGlo Micro-Tac Micro-Tac Tactical Green Laser will not fit the proprietary underside accessory rail on the H&K USP 45.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser will fit a Ruger Security 380.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser is not compatible with the Glock 43X, because the 43X does not have an accessory rail to mount this laser to.
Yes, the TruGlo Micro-Tac Micro-Tac Tactical Green Laser will attach to the underside accessory rail on your KelTec P17.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser could mount to an AR handguard and it does not have a remote switch that is compatible. In terms of the ability of the TruGlo Micro-Tac Micro-Tac Tactical Green Laser to withstand the recoil of a .308 I recommend contacting TruGlo for that information.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser allows for battery access while it is mounted. Batteries are included and can be accessed on the front side of the laser via an included allen key.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser should be compatible with the Springfield Hellcat by fitting the retention bar/screw through the Hellcat underside accessory rail. It will likely sit flush or slightly recessed from your barrel.
The TruGlo Micro-Tac Micro-Tac Tactical Green Laser mounts to picatinny/1913 rails. So as long as you have a picatinny rail system or picatinny adapter you will be able to use this laser on your AR15.
No. You would need to use a picatinny clamp mount/adapter in order to install this TruGlo Micro-Tac Micro-Tac Tactical Green Laser, as it requires a picatinny rail to mount to a firearm. I'd recommend purchasing the GG&G Mossberg 590 Shockwave Flashlight Mount, found by using the link below:
https://www.opticsplanet.com/gg-g-mossberg-590-shockwave-flashlight-mount.html
Please refer to our shipping policy, linked below:
https://www.opticsplanet.com/free-shipping.html