We currently do not have a set of flip caps for the Primary Arms SLx Advanced Gen II Push Button Microdot Red Dot Sight.
The Primary Arms SLx Advanced Gen II Push Button Microdot is compatible with the DDM4 PDW.
It should, but on a standard (non-flat-top) firearm like a shotgun you'll likely want to find a low mount for it. the included mount will sit about 1.5" above the rail on your receiver. You'll need to find a low mount compatible with the Aimpoint T1.
The Primary Arms SLx Advanced Push Button Microdot Red Dot Sight features a fully multi-coated ARD nitride lens, which is an Anti-Reflection coating, which assists in anti-reflection, scratch resistance, anti-glare, water repellent and UV protection.
Yes, the Primary Arms SLx Advanced Gen II Push Button Microdot Red Dot Sight uses the Aimpoint T1 footprint. So it will be compatible with any Aimpoint Micro Footprint mounts.
According to the manufacturer the Primary Arms SLx Advanced Gen II Push Button Microdot Red Dot Sight is designed to handle extreme recoil and can be used on a variety of weapons. So it can be used on a shotgun like the Beretta 1301 as long as there is picatinny rail on the receiver to mount the sight.
Yes, this will fit.
Yes, this red dot comes with (1) Removable 1913 MIL standard base compatible with industry standard micro red dot bases. Absolute and lower 1/3 cowitness mounts are available, but not included.
Yes, this red dot will come with a low picatinny mount.
To further boost that battery life, the SLx MD-20 is equipped with AUTOLIVEâ„¢ motion activation. This feature turns off the optic when not in use and immediately comes back to life when it is moved, extending both the battery life and the life of the emitter.