30mm SPRM™² Cantilever Mounts 15MOA (All Heights)

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GRIFFIN ARMAMENT is a company founded by two Army Infantry sniper qualified combat veterans. Although Griffin is best known for its signature reducing sound suppressors, which are also coveted sniper tools, founders Austin and Evan have combined their lifelong passion for precision rifle shooting, and nearly a decade of notable research and development into a new product line, The Superior Precision Rifle Modular Mounts (SPRM)™².

SPRM™² mounts allow the incorporation of the ACCESSORY INTERFACE SUITE (AIS™) of products, which brings ambidextrous modularity and universal accessory support to the precision optics mount marketplace. The unique patented design splits the rings on two parallel but offset planes allowing accessories to be mounted on 5 AIS™ mounting surfaces. This system affords left and right sides, left and right 45-degree surfaces, as well as the top surface to be used for accessory interfaces. The GRIFFIN SPRM™² mounts bring unsurpassed flexibility and utility to the discriminating user. Left-handed or right-handed shooters are equally supported with the SPRM™² mounts and accessories.

A heavy emphasis on anatomically correct positioning of optics was placed on AIS™ products, leading to the development of the RAPID TRANSITION OPTICS plates. RTO™ plates position secondary non-magnified optics on optical centerline relationship with the stock comb for comfortable, rapid, targeting with a simple roll of the host firearm. These plates currently support: Aimpoint Acro, T1/T2, H1/H2, Comp m5, Sig Romeo, Vortex Spark, Trijicon RMR , SRO, Holosun HE507C HS407C, HS508C, Leupold Deltapoint, J point, Optima, Dr optic, Meopta, Insight microdot, Burris Fastfire, vortex venom, and viper, CMORE STS, RTS, STS2, and vortex razor. Picatinny RTO™ plates are also offered.

Flat mount AIS™ products support a myriad of optics as well as a picatinny interface, Wilcox Raptar Mount, and Simrad Adaptor Plate. Other accessories will be developed to support future market technology, keeping the system at the forefront of the precision space.

SPRM™² Mounts Feature :

  • AIS™ technology (Accessory Interface Suite) Allowing the user to mount accessories wherever they desire. 
  • RTO™ accessory support (ability to mount Rapid Transition Optic plates to the system for a 40° co-witness to the primary optic)
  • Ambidextrous support
  • Unibody construction
  • 12 (qty), 8-40 T15 fasteners for ring clamping
  • 4 (qty), 10-32 fiber lock patched T15 fasteners for rail clamping 
  • Individually probed during the manufacturing process for peerless dimensional consistency
  • Stanag 4694 Compliant attachment, for precise return to zero
  • Type 3 milspec hardcoat anodizing
  • Lifetime Warranty
  • 6061 T6 aluminum 
  • Utility patented to support future technology development in the electro-optics industry 
  • Made in the USA

Although the emphasis of the SPRM™² mounts are on the utility they provide, much care and attention was also given to the engineering, precision, and durability of the mounts themselves. Unlike many market offerings which emphasize manufacturing ease, often bolting split rings to a base adapter, the SPRM™² foundation is a unibody base that cradles the optic (show optic in base without top rings) eliminating extraneous parts and interfaces which are often traceable to loss of zero retention, or tolerance stacking and subsequent loss of interfacing accuracy. A precision rifle becomes a battle rifle with loss of zero, and serious precision shooters should not tolerate it.

SPRM™² mounts are manufactured in the USA at Griffin’s Wisconsin manufacturing facility. Mounts are machined on state-of-the-art multi-axis CNC equipment from solid aircraft-grade aluminum bar stock. Manufacturing in house provides the ability to control quality at levels impossible in contract manufacturing. The geometries of Griffin SPRM™² mounts are machined to part datums probed on each part. Prior to machining, costly manufacturing time is dedicated to each part with Renishaw probe strategies coupled with Renishaw RTS set tool magazines, which ensure critical geometries are machined to positional accuracies of +-.0002”, rather than depending on human loading accuracy in a much looser relationship to workholding based datums like traditional optic mount industry manufacturing processes. Bringing Aerospace industry segmented production engineering concepts and inspection equipment to Optics mounts enhances the state of optical mount quality. This persistent dedication to quality ensures that the mount quality theory and the actual production mount quality are inseparably linked for uncompromising, superior precision.

In an industry space where raw extrusion, job shop quality, and an emphasis on efficiency over quality are normal, why does Griffin bring a wasteful level of manufacturing time and technology to Optic mounts? Because these aren’t just typical market, job shopped, optic mounts. These are Griffin Armament Superior Precision Rifle Modular Mounts. Gear made by snipers for everyone, SPRM™² mounts are the next generation of sniper grade, precision rifle optic mounts. 

Additional Details

10.1 oz
10.2 oz
10.8 oz
11.0 oz

11 Reviews

  • 5
    I'm Happy : )

    Published by Tom on 15th Sep 2023

    Another beautiful mount from Griffin. The best!

  • 5
    I'm Happy : )

    Published by Tom on 4th Jul 2023

    Superb quality, and customer service. Highly recommended!

  • 4
    Built tough

    Published by Brendan on 16th Mar 2023

    Solidly build mount, while just slightly heavier than other mounts. The 6 screw design solidly retains my LPVO, and maintains a zero even when tossed around.

  • 5
    Best mount

    Published by H B on 25th Oct 2022

    Third mount I have gotten from griffin for mounting optics on MSR platforms. First one I got to test on my 458 socom and it has been 100% so I put one on my Grendel and now I got this past one to hold a vortex razor on my super duty 14.5 and as expected it has been flawless. Once my red dot gets here I’ll use the mounting plate to add that and it I’ll be good to go.

  • 5
    Fantastic Mount

    Published by Todd Katler on 7th Jun 2022

    I bought two mounts from Griffin. Fit and finish is a 10 out of 10 and the customer service is fantastic. Extremely pleased.

  • 5
    30 mm 1.93 height SPRM

    Published by Dennis on 10th May 2022

    Excellent quality, i would buy again.

  • 5
    SPRM Cantilever Mount

    Published by Ryan S on 29th Jun 2021

    Great mount that functions as well as its much higher priced competition.

  • 5
    Cantilever Mounts

    Published by Jimmy on 3rd Nov 2020

    These are the best mounts in the industry. They look great, are very versatile, and are rock solid.

  • 4

    Published by Gary on 1st Sep 2020

    Great product. Very versatile. Mounted scope with ease. Can’t wait to zero.

  • 5
    SPRM Cantilever

    Published by Steve Beasley on 21st Apr 2020

    The quality is right there with a SPHUR mount on my 6.5.

    Finally a quality US Made mount to replace a PEPER on my AR that I never was happy with. My AR is now a completed project thanks to the Griffin Armament SPRM, couldn’t be happier.

    Just be careful not to scratch when tightening screws, I didn’t see the included tool until after I was done and scratched it in a few tight spots where an offset was needed.

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