Best Marlin 39a Scope Mount Base

Monstrum Slim Profile Series Offset Cantilever Picatinny Scope Mount | 34 mm Diameter | Black

Dual ring scope mount for mounting standard 34 millimeter diameter tube rifle scopes.
Slim profile design offers the weight of lightweight scope rings with the added rigidity and convenience of a one piece mount.
Mounts to any flat top Picatinny rail equipped rifle.
2 inches of forward extension allows extra flexibility for optimum eye relief and shooting position.
5 ounces in weight and 5 inches in total length, with a base of 3 inches and 2.5 inches of spacing between the rings.

1.20 inches in height, measured from the center of the rifle scope tube to the bottom plane of the rail mount.
30 mm diameter rings for mounting standard 30 mm rifle scope tubes.
Mount base mechanism comes equipped with custom locking bolts that slot seamlessly into your rail system with zero wiggle - guaranteed to hold zero against the toughest of recoil. Avaialble for either Picatinny or Weaver bases..
Uses hardened steel Torx mounting hardware to prevent stripping of the bolts.
All Monstrum products come with a lifetime guarantee.

Product Bundle includes the Monstrum 1-6x24 LPVO Rifle Scope, ZS313 Scope Mount, and a set of matching flip-up lens covers.
LPVO rifle scope with 1-6x magnification, dial controlled reticle illunimation with multiple brightness intensities, and a glass BDC reticle.
45 degree offset base allows for attachment of a sighting system for use at closer ranges.
2 inches of forward extension allows extra flexibility for optimum eye relief and shooting position.

Dual ring scope mount available for both standard 1 inch and standard 30mm tube rifle scopes.
Slim profile design offers the weight of lightweight scope rings with the added rigidity and convenience of a one piece mount.
Mounts to any flat top Picatinny rail equipped rifle.
2 inches of forward extension allows extra flexibility for optimum eye relief and shooting position.
5 ounces in weight and 5 inches in total length, with a base of 3 inches and 2.5 inches of spacing between the rings.

NOTE: This full-length scope mount requires a bent bolt to clear the regular eye-relief scope.
The picatinny rail is CNC-milled from a whole block of aluminum alloy for maximum rigidity.
Solid steel base nut guarantees rock-solid mounting.
The arc-shape base design ensures perfect bore alignment.
Works with any stocks and bent bolts and retains the original military format.
No permanent modification to your Mosin Nagant.
No Gunsmith required, easy Installation in 20 minutes.

Monstrum Precision Scope Rings are precision crafted to a given height specification to match your particular rifle setup and preferred cheek weld.
30 mm diameter rings for mounting standard 30 mm rifle scope tubes30 mm diameter rings for mounting standard 30 mm rifle scope tubes.
Picatinny mount base mechanism comes equipped with custom Picatinny locking bolts that slot seamlessly into your Picatnny rail with zero wiggle - guaranteed to hold zero against the toughest of recoil | Not compatible with Weaver mounts.
Scope rings come with an integrated level bubble mechanism for quickly checking if your rifle is lined up square with your target.
Available in four different heights to match the needs of any shooter: 0.85 inch, 1.00 inch, 1.20 inch, and 1.35 inch.

0.80 inches in height, measured from the center of the rifle scope tube to the bottom plane of the Picatinny rail mount.
Monstrum Tactical Precision Scope Rings are precision crafted to a given height specification to match your particular rifle setup and preferred cheek....
1 inch diameter rings for mounting standard 1 inch rifle scope tubes.
Base is compatible with Picatinny mounting systems | Not compatible with Weaver mounts.
Available in four heights to match your needs: 0.80 inch, 1.00 inch, 1.20 inch, and 1.35 inch.

1.35 inches in height, measured from the center of the rifle scope tube to the bottom plane of the Picatinny rail mount.
34 mm diameter rings for mounting standard 34 mm rifle scope tubes.
Picatinny mount base mechanism comes equipped with custom Picatinny locking bolts that slot seamlessly into your Picatnny rail with zero wiggle - guaranteed to hold zero against the toughest of recoil | Not compatible with Weaver mounts.
Uses hardened steel Torx mounting hardware to prevent stripping of the bolts.
Available in four different heights to match the needs of any shooter: 0.85 inch, 1.00 inch, 1.20 inch, and 1.35 inch.

High profile scope rings for the Picatinny mounting platform with a see-through channel to allow for concurrent usage of the front iron sights.
Available in 1 inch and in 30 mm diameter versions. Please check the tube diameter of your scope before purchasing..
Mount base mechanism comes equipped with custom Picatinny locking bolts that slot seamlessly into your Picatnny rail with zero wiggle - guaranteed to hold zero against the toughest of recoil..
Uses hardened steel Torx mounting hardware to prevent stripping of the bolts.
All Monstrum mount and accessory products come with a lifetime guarantee.

1.00 inches in height, measured from the center of the rifle scope tube to the bottom plane of the Picatinny rail mount.
34 mm diameter rings for mounting standard 34 mm rifle scope tubes.
Picatinny mount base mechanism comes equipped with custom Picatinny locking bolts that slot seamlessly into your Picatnny rail with zero wiggle - guaranteed to hold zero against the toughest of recoil | Not compatible with Weaver mounts.
Uses hardened steel Torx mounting hardware to prevent stripping of the bolts.
Available in four different heights to match the needs of any shooter: 0.85 inch, 1.00 inch, 1.20 inch, and 1.35 inch.