JMac - MDi-co


(6 Reviews)
Current Stock:
0.42 Ounces



Compact, lightweight, & reversible

  • M-Lok Compatible
  • Fits in and across M-Lok Slots
  • Includes mounting hadware
  • 7075 T6 Aluminum
  • Hard Coat Anodized

The quarter-turn T-slot nuts have different torque specifications depending on the handguard material: 4.0 N⋅m (35 lb⋅in) for attaching metal accessories to metal handguards. 1.7 N⋅m (15 lb⋅in) for attaching polymer or metal accessories to polymer handguards.

Reviews (6)


Written by JUSTin on Sep 9th 2021

Bought the hard.fits great and built like a tank. Was shipped right away and got to my house really quick. If you want a well made hand stop that doesn't just look like the run of the ml or plastic get this one


Written by Christian Mendoza on Sep 2nd 2021

2 words. HAND STOP. An upgrade that is necessary for the anything MLOK. It’s small, nimble, and sturdy, and especially on a short barrel pistol like my Galil Ace, the reloads are still there. Made out of quality materials, you can never go wrong with this piece, and I mean, it’s Jmac Customs work, what’s not to like about it? 6 out of 5 stars.


Written by Todd on Sep 19th 2020

rock solid. Fits perfect. Well made.


Written by Linh Pham on Jul 18th 2020

Small compact, very light weight compare to other handstops out there. It's tough, can be use on barricaded to stabilize the rifle. It helps keep my rifle stock sits firmly in the groove of my shoulder.

Hand retention Device

Written by Brett G on May 27th 2020

This is a lightweight but sturdy little device, offering positive hand placement and retention. The HRD improves control and prevents your hand from sliding off of those shorter handguards or coming into contact with your suppressor or muzzle brake. It offers great texturing, not smooth, but not to sharp or aggressive. Good for bare handed or with gloves.

Solid and minimalist

Written by Tyler Frogley on May 25th 2020

It’s my favorite hand stop so far. It feels great for metal, and is surprisingly comfortable. Installation was easy, and of course, looks great as most jmac products do.

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