SKU: ZMPM003B
UPC: 708279006043
MPN: PM003B
The ProMag Industries AR-15/M16 Rifle & Carbine Handguard Polymer Rail (PM003B) is a precision-molded Picatinny rail system engineered to MIL-STD 1913 specifications. Manufactured from proprietary black polymer, this rail mounts directly to AR-platform handguards via three captured-nut machine screws, allowing rapid attachment of vertical foregrips, tactical flashlights, laser designators, and bipods without permanent modification to the rifle or carbine.
The rail's MIL-STD 1913 indexing ensures compatibility with standard tactical accessories across the market. Three mounting lugs protruding from the backside engage the handguard securely while the polymer construction reduces weight and cost compared to aluminum rails—a practical trade-off for operators who prioritize accessory modularity over rail stiffness. All mounting hardware is included, eliminating the need for additional fasteners at point of purchase. The compact 9.15-inch length accommodates carbine-length handguards while the 2.85 x 1.5-inch profile maintains a low-profile footprint suitable for combat carbines, patrol rifles, and range platforms.
This rail is ideal for shooters seeking to extend accessory capability on AR handguards without welding or permanent installation. Law enforcement patrol carbines, tactical trainers, and civilian sportsmen building modular AR configurations use this rail to mount white-light systems, pressure switches, or laser-aiming modules to the foregrip area. The non-permanent mounting design allows rapid reconfiguration for different mission profiles—a critical advantage during duty transitions or equipment testing.
ProMag handguard rails occupy a practical middle ground in the AR accessory ecosystem: they cost less than quality aluminum systems, install without gunsmithing, and deliver robust MIL-STD indexing for professional-grade optics, lights, and grips. For shooters upgrading existing carbines or building modular uppers, the PM003B polymer rail delivers measurable functionality gains with zero permanent footprint.
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