Description
The Geissele Super Precision is a one-piece AR-15 scope mount machined from a single block of 7075-T6 aluminum. This is the 34mm ring, Extended length version in black. Extended moves the rings about 1.16 in forward of the mount base, versus 0.63 in on the Standard, so you can push a 34mm LPVO farther forward for eye relief or to clear a short scope body over the receiver. Four shear lugs take recoil in the rail slots, and two nut-and-bolt clamps each put about 1,400 lb of force on the rail, per Geissele.
The base spans seven Picatinny slots. Rings are 0.75 in wide with 2.8 in between them, and the caps swap between towers without affecting precision. Finish is Type 3 hardcoat anodize in black. Also made in Desert Dirt Color (05-405S), and in Standard and Hyper Extended lengths.
Specs
- Part number: 05-405B
- Ring diameter: 34mm
- Length: Extended, about 1.16 in forward extension
- Color: Black
- Material: 7075-T6 aluminum, one piece
- Finish: Type 3 hardcoat anodize
- Rail interface: 7 Picatinny slots, 4 shear lugs, 2 nut-and-bolt clamps at about 1,400 lb each (per Geissele)
- Ring spacing: 0.75 in ring width, 2.8 in inner, 4.3 in outer
- Made in: USA
Who it’s for
3-Gun and Tactical Games shooters running a 34mm LPVO, such as a Razor Gen III 1-10 or ATACR 1-8, who need the scope farther forward than a Standard mount allows because of a long length of pull, a forward stance, or a scope with tight eye relief.
Who should skip it
If a Standard mount already lands your eye box, the 34mm Standard (05-417B) keeps the weight closer to the receiver. 30mm tubes need the 30mm Extended (05-381B). Shooters who move one optic between rifles should look at a QD mount instead.




