Description
Reloads are where a lot of AR-15 shooters lose time, and the Armaspec Rhino R-23 is a simple fix for that. It wraps a flared funnel and a textured grip around your existing magwell, giving mags a wider mouth to slide into and your support hand something to hang onto. The angled funnel opens up the insertion path so magazines seat cleanly even when you're moving, rushing, or working in low light.
What the Rhino R-23 Actually Does for Your Reloads
Armaspec built the R-23 around a 60-degree insertion angle, and the payoff is real speed. The company reports mag changes running roughly 48 percent faster on average, all without pulling your eyes off the target. The finger grooves on the outside give you a secure hold on the magwell too, which comes in handy for close-quarters work or clearing a malfunction when you need full control of the rifle.
Fitment and Build on the R-23 Magwell Grip
This is a true drop-in part. The two side panels clamp around a Mil-Spec M16, M4, or AR-15 lower and lock down with the included set screws, so there's no driving out trigger guard pins, no permanent modification, and no need for a whole new lower. It's molded from ultra-light reinforced polymer and tips the scales at just 1.73 ounces, so you get the added function without weighing down the front of the gun. It plays nice with most AR-15 magazines, including all Magpul PMAGs up through Gen 3.
Finish and Backing
The R-23 comes in a clean black finish and is made in the U.S.A. Armaspec stands behind it with a lifetime warranty, which tells you plenty about how the polymer holds up to real range and field use. If you run an AR and want faster, more repeatable reloads without a big project, this is one of the easiest upgrades you can bolt on.
Key Specifications
- Manufacturer: Armaspec
- Model: Rhino R-23
- Manufacturer Part Number: ARM100-BLK
- UPC: 810048490356
- Color / Finish: Black
- Material: Reinforced Polymer
- Compatibility: Mil-Spec AR-15 / M4 / M16 Lowers
- Magazine Insertion Angle: 60 Degrees
- Magazine Compatibility: Most AR-15 mags including Magpul PMAGs (Gen 3)
- Weight: 1.73 oz
- Installation: Drop-in, no permanent modification
- Country of Origin: Made in U.S.A.
- Warranty: Lifetime
What’s Included
- 1x Rhino R-23 left side panel
- 1x Rhino R-23 right side panel
- 3x Socket head set screws
- 1x Set screw hex key (3/32)
Frequently Asked Questions
Does the Rhino R-23 require any permanent modification to install?
No. The R-23 is a true drop-in part that clamps around your existing Mil-Spec magwell with the included set screws. There's no need to drive out trigger guard pins or buy a new lower, and the only tool you need comes in the box.
Will the R-23 magwell grip work with my Magpul PMAGs?
Yes. It's built to accept most standard AR-15 magazines, including all Magpul PMAGs up through Gen 3. The flared funnel actually helps guide those mags in faster than a bare magwell.
How much does the Rhino R-23 add to my rifle's weight?
Very little. The R-23 is molded from reinforced polymer and weighs just 1.73 ounces, so you get the funnel and grip benefits without noticeably changing the balance of the gun.
Does it really make reloads faster?
Armaspec designed the R-23 around a 60-degree insertion angle and reports average mag changes running about 48 percent quicker. The wider funnel mouth lets you seat magazines without looking down, which is where most of the time savings come from, especially in low light.




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