The LowPro™ Low-Profile Red Dot Mount for Ruger Mark III & IV pistols is an ultra-low-profile mounting plate for attaching a red dot directly to the barrel of a Ruger Mark III & IV.
Key features
- At only 1mm (0.04″) thick, this is the lowest profile mount on the market and is less than half the thickness of alternative mounting plate options
- Made in the USA out of durable and lightweight PA12 nylon
- Alignment pins keep red dot secure and zeroed
Includes
- (1) LowPro™ mounting plate
- (2) #6-48 x 1/4″ flat head screws (T10 torx)
- (2) #6-32 x 8.7mm flat head screw (T10 torx)
- (1) Installation instructions card
Compatibility
Compatible firearms
Compatible with all Ruger Mark III & IV pistols with threaded holes on top of the upper except for the Mark IV 22/45 Tactical Silencer Shop Exclusive (SSH) models (40179, 40181, 40182, 40186, & 40193).
Also compatible with TacSol Pac-Lite uppers, however, please note that TacSol Pac-Lite uppers have #6-40 threaded holes and Ruger uppers have #6-48 threaded holes.
Compatible red dots
Choose your red dot footprint below
FAQ
Q: Why are the mounts made out of PA12 nylon instead of aluminum?
A: PA12 nylon is an engineering-grade thermoplastic with high strength, impact resistance, wear resistance, chemical resistance, and dimensional accuracy. It is also low cost which is what allows us to keep the price low. PA12 nylon is sufficiently strong for rimfire firearms, especially the Ruger Mark I/II/III/IV pistol because the red dot is mounted to a barrel that doesn’t reciprocate.
Q: Is the mount durable and will it hold zero?
A: Yes, LowPro mounts are very durable and will hold zero long-term. They are used by many competitive shooters who shoot tens of thousands of rounds annually.
Q: How are the mounts made?
A: The mounts are additively manufactured on an industrial-grade 3D printer. The strength, quality, and surface finish is comparable to injection-molding.

































