FirstSpear
Polymer-reinforced nylon pocket that holds one AR-15 magazine partially exposed for a fast speed reload, with a removable shock cord.
FirstSpear's M4 Speed Reload pocket is the duty-and-military answer in this guide. A polymer reinforcement molded into a tactical nylon body precisely fits a single 30-round 5.56x45 magazine and leaves it partially exposed so the shooter can index and rip a reload fast. A shock cord and speed tab add retention and pull off entirely if you want the bare speed-reload profile.
The defining feature is FirstSpear's 6/9 and 6/12 attachment systems, the laminated laser-cut alternatives to stitched MOLLE that let pouches sit tighter and lower against the rig. The 6/9 keeps a MOLLE-compatible front for stacking; the 6/12 runs a smooth front for the slimmest profile.
This is the single-mag pocket. FirstSpear also builds multi-mag M4 shingles on the same 6/9 and 6/12 systems for shooters who want three mags across the front of a carrier. Made in the USA.

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Add the M4 Magazine Pocket, Speed Reload, Single to your build and see how it enhances your platform.