![]() Designed for carbines with a Front Sight Base and a Delta ring, this handguard is made of impact-resistant, fiber-reinforced nylon and aluminum heat shields. Features:Solid 6061 Aircraft Aluminum Construction With Hard AnodizingCNC Precision MachinedPicatinny/weaver Rail TypeExtended Top Rail Provides 'No-gap' InstallationInside Diameter: 1.74'Length: 07', 10', 12' and 16'. The ProMag PM242 AR-15/M4 Polymer Quad-Rail Carbine Handguard can be used as a replacement quad-rail handguard for carbine-length AR-15s. The bottom rail uses locking lugs with a retaining pin for a secure mount to the upper hand guard. AR-15 Free Float Quad Rail Handguard -Length Option. The receiver end of the M44S is tightly secured to the barrel with a nut bracket attached to the upper three rail section with four captive flathead screws. ![]() Two (2) piece quad rail hand guard for AR-15 carbinesMIL-Spec Picatinny rails at the 12, 3, 6, and 9 oclock positionsMade of high impact glass filled nylon polymer with integral aluminum heat shield. The M44S Polymer Handguard Quad Rail defines as a superior zero retention by having the upper three rail section mount underneath the end cap and secured in a place with a friction fit ledge with roll pins. Shop PROMAG AR15 Polymer Handguard Rail (PM003A). The M44S Polymer Handguard Quad Rail for AR15/M4 rifles with durability, reliability, and maintaining balance while interfacing with all issued weapon system components.
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