Scope mount · Discovery · 20 MOA tactical
Discovery Precision 20 MOA Tactical 34mm/30mm One-Piece Mount
One-piece tactical mount with built-in 20 MOA elevation cant. The right mount for the ED-PRS 5-25×56 or any 34mm tactical scope being pushed past 100 yards.
Image credit: Airgun Archery Fun
Quick take
One-piece Picatinny mount with a built-in 20 MOA elevation cant — meaning the front ring sits 20 MOA higher than the rear, giving you 20 extra minutes of angle of usable scope travel before the internal turret runs out. The right mount for the [Discovery ED-PRS 5-25×56](/pcp/parts/scope/discovery-ed-prs-5-25x56-gen-2/) or any 34mm tactical scope pushed past 100 yards. Aircraft-grade 6061 T6 aluminum, heat-treated screws.
Canadian family business · Flat $17 CAD shipping
Specifications
Key specs
| Brand | Discovery |
| Style | One-piece tactical scope mount |
| Rail pattern | 20mm Picatinny |
| Scope tube fit | 30mm or 34mm (chosen at checkout) |
| Elevation cant | 20 MOA (built into the mount) |
| Material | Aircraft-grade 6061 T6 aluminum |
| Hardware | Heat-treated screws for stability and to prevent loosening |
| Use case | Long-range / tactical scopes pushed past 100 yards where scope internal travel needs additional MOA |
| Stock | 3 left at time of writing |
The Hunt & Live take
Why this mount earns the pick
A scope’s internal elevation turret has a finite amount of travel. At extreme range, the turret runs out before the bullet path crosses the reticle. The fix is to physically tilt the mount itself downward at the back, so the scope is already pointing slightly upward when the turret is at zero — giving you an extra 20 MOA of usable elevation travel before you hit the turret’s mechanical limit.
For PCP work, this matters when you’re shooting field-target or long-range pest control past 75 yards with a heavy slug. For dual-use builds (PCP plus a centerfire or precision rimfire on the same scope), this mount is what lets a 5-25× tactical scope reach centerfire distances after being zeroed on the PCP.
What it pairs with
- Discovery ED-PRS 5-25×56 Gen 2 — 34mm tube, the premium tactical scope this mount is built for
- Any 30mm tactical scope being used at distances where the internal elevation turret is the limiting factor
- Any 34mm tactical scope going on a PCP, precision rimfire, or centerfire
30mm or 34mm?
- 30mm — for the LHT 3-12×42, LHD 3-12×42, or the HD GEN2 family
- 34mm — for the ED-PRS 5-25×56 Gen 2 or any other 34mm premium tactical scope
Honest trade-offs
20 MOA is overkill for most airgun work. If you’re shooting a PCP at sub-75 yards, the regular Discovery 6061 Picatinny rings give you what you need without the tactical mount premium. Buy this mount if you’re either (1) running the ED-PRS scope, (2) shooting past 100 yards routinely, or (3) using the same scope across PCP + centerfire.
The 20 MOA cant commits your scope to that direction. You can’t reverse it for a downhill shot, and on a sub-25-yard backyard pest target, you’ll be dialing all the way back through the turret travel to find zero. For dedicated long-range use this is fine; for mixed-range use, the regular Discovery 6061 rings are more flexible.
3 left in stock at time of writing.
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