Laser Engraved NT-Mags for the TC Compass

Take a walk on the wild side with our NT-Mags for the Thompson Center Compass rifles, marked on both sides (mirrored) with your choice of pattern or design! Choose a design here from our ready-made options, or if you have something special in mind check out the custom shop to upload your own artwork for us to engrave or contact us to discuss a custom design! Prices listed include the magazine with your choice of engraving design.

Finally, magazines are once again available for the Thompson Center Compass rifle! Unlike the rotary style 5-round magazines that originally came with the rifle, our NT-Mags are a vertical feed box magazine design available in 10-round or 5-round capacities in addition to a single-shot plug. The top of our NT-Mag is shaped to fit the TC Compass magazine well with a built-in ramp to feed rounds into the barrel at the correct angle for reliable chambering. Best of all, these mags are made in the USA!

These mags are available in multiple calibers for TC Compass rifles: NT-Mags for the .308-based cartridges (.243, 6.5 creedmoor, 7mm-08, and .308) have a maximum overall cartridge length of 72.5mm or 2.85 inches. NT-Mags for the .270 and 30-06 cartridges have a maximum overall cartridge length of 86.25 mm or 3.39 inches. These dimensions are well above the length of standard loadings for these rounds, but we wanted to allow some extra space for longer than normal custom reloads.

Tolerances on these mags are tight for better fit and to maintain the correct angle for rounds to feed into the barrel chamber, but as a result some minor fitting (sanding or filing to remove a millimeter or less) may be necessary in two areas: The inner edges of the feed lips are spaced 10.5 mm apart which gives about 1mm clearance for the bolt lug to pass between (a slightly oversized bolt lug or one that is slightly off-center can rub against one side or the other of the feed lips) and the inner edges of the front ramps which catch the shoulder of the cartridge and tilt it up to feed into the chamber. As we get more feedback from customers we’re making measurement tweaks to the mags to better fit the variety of calibers they’re designed for.

The mag bodies are made from polyethylene terephthalate glycol (PETG) thermoplastic with embedded carbon fiber for added strength and rigidity. These magazine bodies have excellent chemical and oil resistance and can resist temperatures up to 160 degrees! The exterior is textured to closely match the finish and color on the TC Compass rifle. The follower and locking tab are a high-vis orange color while the dark gray release latch is a carbon fiber composite for strength and durability.