RPM Delta 30mm Cantilever Mount (1.50'') No Bubble
$229.99
The RPM Delta 30mm cantilever mount is a lightweight, precision-engineered scope ring built for shooters who refuse to compromise on accuracy or weight savings. This American-made optic mount delivers the rigid recoil-absorbing performance you need for hunting, tactical shooting, or long-range competition without the unnecessary heft that drags down your rifle. The Delta's cantilever design and integrated recoil lug work together to maintain repeatable zero through heavy recoil impulses, while the 1.50" height-to-center geometry places your optic in the sweet spot for most stock configurations and sight lines.
RPM engineered the Delta to bridge the gap between minimalist and bulletproof. The ring body and cap are milled from 6061-T6 aluminum—strong enough to lock down 30mm tubes without deflection, light enough that you'll actually notice the weight savings across a full day afield. The 303 stainless cross bolt and nut are sized and torqued for real holding power (45 in-lbs recommended), and the alignment lug takes the guesswork out of cap installation, ensuring the ring seats true on the first try. Every unit rolls off the line in the USA, which means the quality control is as uncompromising as the engineering.
This mount pairs equally well with hunting rifles, precision .308s, or mid-range tactical builds. If you're running a 30mm tube and want a cantilever mount that won't flex under fire, keeps your optic where you aimed it, and doesn't waste ounces, the RPM Delta is worth a hard look.
Key Features
- Precision 30mm cantilever mount with integrated recoil lug for zero stability
- 1.50" height to optic center—optimized for modern rifle ergonomics and sight picture
- Lightweight 6061-T6 aluminum construction (5.7 oz) reduces overall rifle weight
- 303 stainless steel cross bolt and nut rated for 45 in-lbs of torque
- Alignment lug ensures proper cap-to-base seating and repeatable assembly
- Made in the USA with strict quality control
Specifications
| Tube Diameter | 30mm |
| Height to Center of Ring | 1.50" |
| Mount Type | Cantilever |
| Ring Body Material | 6061-T6 Aluminum |
| Cross Bolt Material | 303 Stainless Steel (1/2") |
| Weight | 5.7 oz |
| Recoil Lug | Integrated |
| Recommended Cap Screw Torque | 18 in-lbs |
| Recommended Cross Bolt Torque | 45 in-lbs |
| Origin | USA |
Frequently Asked Questions
What size tube does the RPM Delta 30mm mount hold?
This mount is designed for 30mm optic tubes. RPM also offers the Delta in 34mm and 35mm variants if you need a different bore size.
How much does the RPM Delta cantilever mount weigh?
The 30mm Delta weighs 5.7 ounces, making it an excellent choice for hunters and long-range shooters who are building a lightweight rifle without sacrificing rigidity.
What is the height-to-center of this cantilever mount?
The RPM Delta mounts your optic 1.50" above the bore centerline, a height that works well with modern rifles and most stock profiles while maintaining natural sight picture and cheekweld.
Does the RPM Delta include an integrated recoil lug?
Yes. The mount features an integrated recoil lug designed to absorb and distribute recoil forces, helping maintain zero consistency through heavy-recoil cartridges and extended shooting sessions.
