Rail Mount Rescue

Rail Mount Rescue

Two mounts that will come to the rescue if you run out of rail.

ADM's AD-Recon is a cantilever mount with skeletonized, vertically split rings and features two locking levers on the left side of the mount.

While the flattop receiver has made mounting optics onto an AR-15 rifle easier, there is still one issue to consider. When mounting either a long scope or a scope with long eye relief you may run out of rail space on the upper receiver.

The solution is either to piggyback a rail extension onto the receiver or to use a cantilever mount. I'm not a big fan of putting a ring onto a mount sitting on a perfectly good integral scope rail, so I tend to run cantilever mounts.


Simple in concept, this type of mount simply extends forward, providing the additional space required. In the last few years, there has been an explosion of new mounts of this type for the AR-15. Some are better designed than others and some are more economical, so I decided to take a look at two new designs readers might like.



American Defense Manufacturing, better known simply as ADM (AmericanDefenseManufacturing.com), offers a wide array of mounting solutions for the AR family of rifles. The heart of ADM's line is its patent pending Quick Detach Auto Lock System. This system utilizes a rotating side lever to securely lock the mount into place.

It consists of a transverse locking bolt and does not require any proprietary tools for adjustment. ADM's system can be easily adjusted to tightly fit individual rails with a flat-blade screwdriver or even just your fingers. The side lever can also be configured to lock to the front or to the rear. Once the side lever is fully rotated home, a spring-loaded keeper locks the lever in place.


The mount I chose for review was ADM's AD-Recon mount. This cantilever mount features distinctive-looking skeletonized rings. Rather than just being offered in one inch and 30mm, it's also offered in 32mm, 34mm, 35mm and even 40mm. Each vertically split ring is retained by five screws. The mount itself locks to the rifle's integral 1913 rail by two side levers.


The mount itself is CNC machined from a block of 6061 T6 aluminum. It then receives a hard-coat Type 3 mil-spec anodize finish. Height with 30mm rings is 1.47 inches, and it tips the scales at just 8.4 ounces. Machined here in the USA, it retails for $190.

The AD-Recon mount was nicely finished, but I did note the front rings did not line up perfectly. Even so, a Carl Zeiss 6.5-20x50 Conquest scope slipped neatly inside with no fuss. Adjusting the side levers to precisely and tightly fit a number of different upper receivers was easily accomplished.

Once mounted onto a heavy-barrel AR-15, the AD-Recon performed well and helped to provide sub half-minute groups at 100 yards. Removing the mount and reinstalling it did not noticeably change point of impact at 100 yards.

Warne's R.A.M.P. permits low mounting of a scope for a good cheek weld and also offers a mounting point for a red dot sight.

The ability to quickly and easily remove and reinstall an optic while retaining zero is a plus. While this is a feature everyone will not need, it can be handy. All in all, ADM's AD-Recon mount performed well and looked good.

While ADM is a relatively new name in the game, Warne (Warne ScopeMounts.com) is an established, respected name. In years past, Warne rings were seen only on handsome sporters. Today, though, Warne offers an entire line of heavy-duty tactical rings and mounts. One of its latest offerings is the Rapid Acquisition Multi-Sight Platform, or R.A.M.P. This is a simple, rugged yet elegant-looking mount that positions the front ring 1.75 inches forward of the receiver.

The machined aluminum mount attaches securely to the rifle's receiver by two half-inch nuts that bear up against a retaining plate. Four Torx-head screws retain each ring cap, and the mount is nicely machined and finished.

What sets this mount apart from the crowd is the ability to mount a small red dot sight for use in close quarters. The rear of the mount accepts bases that can be removed or used to mount a small red dot at 45 degrees. The bases come with the mount and can be placed on either side. The downside is the mount leaves no room for a conventional backup iron sights.

I mounted a BW Optics 2.5-10x42 scope and a Burris FastFire red dot sight onto a Bravo Company AR and put the R.A.M.P. to work.

The first thing I noticed is the R.A.M.P. is slightly lower than most of the AR mounts out there. By not having to worry about clearing iron sights, Warne was able to lower the mount. While the distance is small, it's noticeable. This provides an improved cheek weld, which makes for more consistent shooting.

Another small touch is Warne placed the locking nuts on the right side of the mount so they are out of the way when reaching for the charging handle.

Running the 2.5-10x42 BW Optic went smoothly. I was able to obtain an unusually good cheek weld using a Magpul ACS or a Vltor E-Mod stock, and this was one aspect of the system I really liked.

You could cut the fancy micro red dot sight mount off the R.A.M.P., and I'd still be happy. However, the red dot mount is a slick take on how to add a micro red dot onto a scoped rifle. The sight is out of the way and fairly protected until you need it. Then you just roll the rifle slightly, rotating the magnified optic out of view and the red dot into view.

Field of view is fairly good, and the dot is easy to pick up. Once you get the hang of it, which doesn't take long, you can rapidly transition back and forth between the two optics while making rapid hits.

Suggested retail price for the R.A.M.P. is $220 for the one-inch model and $235 for the 30mm.

Recommended for You

Winchester Repeating Arms releases the new autoloading Wildcat 22 LR rimfire rifle. Rimfire

Winchester Releases Wildcat 22 LR Rimfire Rifle

Rifle Shooter Digital Staff - April 11, 2019

Winchester Repeating Arms releases the new autoloading Wildcat 22 LR rimfire rifle.

Gunsite's Ed Head reviews the Ruger American/Robar Scout Rifle. Bolt-Action

Review: Ruger American/Robar Scout Rifle

Ed Head - April 23, 2019

Gunsite's Ed Head reviews the Ruger American/Robar Scout Rifle.

For decades, things were quiet on the .22 centerfire front. Starting in 2017, shooters were offered not one but two hot new centerfire .22 cartridges. First out of the gate was the .22 Nosler, followed by the Federal .224 Valkrie. Ammo

.22 Nosler vs .224 Valkyrie

Brad Fitzpatrick - May 02, 2019

For decades, things were quiet on the .22 centerfire front. Starting in 2017, shooters were...

See More Recommendations

Popular Videos

All About .300 Blackout

All About .300 Blackout

The .300 Blackout is here to stay, and we take some time to look at new technology surrounding this cartridge. Next, we pit subsonic rivals against each other before stretching the legs of this CQB round out to 600 yards from a short 9-inch barrel.

Gun Clips with Joe Mantegna - BULLPUPS

Gun Clips with Joe Mantegna - BULLPUPS

Joe Mantegna talks about the origins of Bullpups.

Tactical Solutions Introduces New X-Ring Takedown SBR Rifle

Tactical Solutions Introduces New X-Ring Takedown SBR Rifle

Keith Feeley of Tactical Solutions sat down with Michael Bane at SHOT Show 2018 to talk about the new X-Ring Takedown SBR .22LR rifle.

See more Popular Videos

Trending Stories

Browning's new X-Bolt Max Long Range rifle is an accurate rifle tailored for long range accuracy. Bolt-Action

Browning's New X-Bolt Max Long Range Rifle

Rifle Shooter Digital Staff - April 11, 2019

Browning's new X-Bolt Max Long Range rifle is an accurate rifle tailored for long range...

For decades, things were quiet on the .22 centerfire front. Starting in 2017, shooters were offered not one but two hot new centerfire .22 cartridges. First out of the gate was the .22 Nosler, followed by the Federal .224 Valkrie. Ammo

.22 Nosler vs .224 Valkyrie

Brad Fitzpatrick - May 02, 2019

For decades, things were quiet on the .22 centerfire front. Starting in 2017, shooters were...

The Federal Berger Hybrid Hunter Ammo combines high BCs with a forgiving bullet profile and promises versatile performance. Ammo

Federal Berger Hybrid Hunter Ammo

Brad Fitzpatrick - April 30, 2019

The Federal Berger Hybrid Hunter Ammo combines high BCs with a forgiving bullet profile and...

See More Stories

More Gunsmithing

          The new StraightJacket barrel system delivers on its promises.    By David M. Fortier   Gunsmithing

Crazy Performance

David Fortier - October 01, 2010

The new StraightJacket barrel system delivers on its promises. By David M....

Join Dick Metcalf as he visits the Ruger factory to put polymer and aluminum parts through tests to see which is stronger. Gunsmithing

Is Polymer Stronger Than Aluminum?

Brock Norman - May 31, 2011

Join Dick Metcalf as he visits the Ruger factory to put polymer and aluminum parts through...

The BX-Trigger is a drop-in replacement trigger all Ruger 10/22 rifles and 10/22 Charger pistols Gunsmithing

BX-Trigger Upgrade for Ruger 10/22 Rifles and Pistols

Dusty Gibson - April 04, 2015

The BX-Trigger is a drop-in replacement trigger all Ruger 10/22 rifles and 10/22 Charger...

See More Gunsmithing

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction.

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

×