Mountain Aerospace Machining M1 Thumbsaver

by
posted on December 27, 2020
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
thumbsave.jpg

Recognizing a void in the market for a modified M1 Garand operating rod catch, machinist Clint Whitehair has developed the new M1 Thumbsaver. It offers the same functionality as the previously available Holbrook device (June/July 2020, p. 40), but is machined from hardened 4150 steel and features a Parkerized finish and Teflon-infused lubricant. The device prevents “M1 thumb” and allows easy loading of rounds individually into a standard en bloc clip. When a clip is inserted into the rifle, it locks into place and holds the bolt open. The first round is loaded by pulling back and releasing the charging handle. When the last round has been fired, the rifle locks open on the empty clip, which can be ejected by depressing the clip latch. The device is easy to install and does not require permanent modifications to the rifle. Price: $75. Contact: Mountain Aerospace Machining; (406) 552-7516; m1thumbsavers.square.site.

Latest

Rifle with ammo and ruler
Rifle with ammo and ruler

How Accurate are Today’s Rifles?

In just the last few decades, rifle accuracy has improved an astonishing amount, and our expectations have risen accordingly.

New for 2026: GForce Arms LVR30S in .30-30 Win.

One of the latest .30-30 Win. lever guns comes from an unexpected place: Turkey. New for 2026, GForce Arms has introduced its LVR30S.

The Armed Citizen® Sept. 21, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

5 Must-Have Tools for DIY Gunsmithing

These gunsmithing tools make it much easier to work on your firearms, whether at home or in the field.

Garmin Acquires Applied Ballistics

Garmin has acquired Applied Ballistics, a leading provider of ballistic research, projectile data and integrated solver technologies dedicated to enhancing shooting accuracy.

NRA Leaders Attend White House Dinner as President Trump Signs Orders Expanding Access to Public Lands and Waterways

NRA Executive Vice President and CEO Doug Hamlin and Institute for Legislative Action Executive Director John Commerford represented NRA members at a White House dinner hosted by President Donald J. Trump.

Interests



Get the best of American Rifleman delivered to your inbox.