Certified Factory Installer

Thordsen Customs


The Ultimate Bilateral Magazine Release (UBMR) is a revolutionary new device and the latest innovation from Thordsen Customs LLC. California AR-15 enthusiasts can now have complete ambidextrous control of their firearms and for the first time, right handed shooters can perform efficient tactical magazine changes with their Bullet Button AR-15.

Installation of the UBMR requires modification to the stripped lower receiver by a factory certified dealer. Calarmory is a factory certified dealer.

If you are not in the Camino area, ship me your lower or receiver and I will do the installation and ship it back the same day. Overnight shipping is available.

Contact us for more information regarding this innovation.

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