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Is this the correct QD base for the 2x Primary Arms Prism GLx scope? I like lower third and this seems pretty tall.? — 1 Answer

by Gary K, from NH, United States Asked on January 5, 2023

Name American Defense Manufacturing Modular Base w/ Titanium Lever Assembly (5)
$130.41 $123.89 Save $6.52
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Answered by Ethan, Gear Expert, from IL, United States, on February 06, 2023

The American Defense Manufacturing Modular Base will fit your GLX 2X Prism and will add 0.88" in height. This will put your optic at a 1.4"-1.5" centerline height (absolute co-witness). Your GLX 2X Prism will have included 3 risers, one of which (Riser A) will put your centerline height at 1.64", which is a lower 1/3 height.

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Last updated 2025-12-11 UTC.