The M-Series magnetic shotgun sights have established the standard for improved shooting performance. The four interchangeable, high-intensity LitePipes included with all M-Series sights allow the shooter to adjust to existing light conditions and shoot better in both low and bright light. HiViz's snap on/off magentic base is available in three different sizes to fit virtually any rib width from 11/64" to 9/16". Not compatible with fiber or aluminum ribs. (See CompSight description for shotguns with non-steel ribs)The MPB Sight incorporates proven HiViz advantages in a sight for plain barrel shotguns.
A unique snap-on sight base accomodates any one of four LitePipes in green or crimson in two diameters.

M-200 Magnetic base sight to fit ribs from .165" to .225" (11/64" - 1/4"; 4.2mm - 6.5mm). M-Series includes 4 LitePipes (2 green, 2 crimson);

Gun Models:
Beretta: 686 and 687 models with ultra narrow rib, AL390, A304, AL390 Field, 391 Urika Field; Browning: Gold Series, 28 ga. and .410 Citori; Sigarms: SA-3 Hunter, SA-5 Upland; Benelli: 20 gauge

M-300 Magnetic base sight to fit ribs from .219" to .312" (7/32" - 5/16"; 5.7mm - 8.2mm). M-Series includes 4 LitePipes (2 green, 2 crimson).

Gun Models:
Remington: All field models; Browning: Gold 10 ga., BPS, Auto-5; Beretta: Comp., T and ST ribs, Pintail auto; Ruger: Red Label Field guns; Ithaca: Model 37 and other models; Benelli: Super Black Eagle and all field guns; Franchi: Field guns

M-400 Magnetic base sight to fit ribs from .312" to .437" (5/16" - 7/16"; 8.2mm-11.3mm). M-Series includes 4 LitePipes (2 green, 2 crimson).

Gun Models:
Winchester: All post-1964 pumps and autoloaders; Mossberg: All (except ported models); Browning: Citori target grades (except super wide ribs); Beretta: S682 Comp, trap guns.