One Shot V2 IWB Holster: Retention and Draw Setup Guide

Quick answer

Set your One Shot V2 IWB carrier by first adjusting the Mag Retention Device (MRD) to hold the magazine securely without slowing your draw, then position the clip for a consistent grip and draw angle, and finally break in the carrier with practice draws. Make small changes one at a time and test after each.

Why the MRD is the first adjustment you should make

The One Shot V2 uses a built-in Mag Retention Device (MRD) that you adjust with an Allen key (not included). This is the core of retention tuning: it lets you set how firmly the carrier grips the magazine. Start here because clip position and draw angle only matter if the magazine stays put and releases predictably.

A common mistake is overtightening the MRD to the point where the magazine won't release smoothly during a draw. Aim for enough tension that the magazine doesn't shift or fall out when you run or jump, but you can still pull it free with a firm, straight pull.

Clip position and cant: finding your natural draw angle

Once retention is set, adjust the clip position to place the carrier where your hand naturally indexes during the draw. The One Shot V2 allows you to reposition the clip (using the same Allen key) to change ride height and cant. A slight forward cant often helps with concealment and draw speed for IWB carry, but the right angle depends on your body type and where you carry.

Test by wearing the carrier in your typical carry position and performing slow, deliberate draws. If you have to twist your wrist or reach awkwardly, adjust the clip one hole at a time. Avoid making large changes all at once—small increments let you isolate what works.

Breaking in a new IWB carrier without compromising retention

New carriers can feel stiff, and the materials may need some flexing to conform to your body and magazine. Break-in is mostly about repetition: wear the carrier around the house and do practice draws (with a verified empty magazine or training round) to help the MRD and clip settle. Do not force or bend the carrier beyond its designed adjustments, as that can damage the retention device.

If the carrier feels uncomfortable during break-in, check that your belt and clothing aren't adding pressure points. Sometimes a slight cant or ride height change solves comfort issues without needing to loosen retention.

Step-by-step setup for your One Shot V2 IWB

1. Adjust the MRD for baseline retention: Insert your magazine into the carrier and use an Allen key to turn the MRD adjustment screw. Start with light tension and gradually increase until the magazine stays in place when you shake the carrier gently but still releases with a firm pull. Test with the magazine you plan to carry. If the magazine falls out during a light shake, increase tension slightly; if it requires two hands to remove, decrease tension.
2. Set clip position and cant for your draw: Loosen the clip screws and move the clip to your preferred ride height and angle. A slight forward cant (around 10–15 degrees) often works well for IWB, but adjust based on comfort and concealment. Tighten screws firmly and test by wearing the carrier in your usual position and performing slow draws. Check that the clip does not interfere with your belt or waistband and that the carrier sits consistently every time you put it on.
3. Break in with practice draws: With an empty magazine or training round, practice drawing and reholstering the magazine 20–30 times. Focus on a smooth, straight pull. If the draw feels gritty or hangs up, recheck MRD tension and clip alignment. Repeat daily for a week to let the materials settle. Stop if you notice the magazine loosening over time; re-tune the MRD as needed after break-in.

Product facts

• One Shot V2 - IWB: The One Shot V2 IWB carrier features a built-in Mag Retention Device (MRD) adjustable with an Allen key (not included). This lets you fine-tune retention for your specific magazine without extra tools beyond a common Allen key.