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Cross Machine and tool UHPR 12.5 Mod 4

Cross Machine and tool UHPR 12.5 Mod 4


Cross Machine Tool UHPR-12.5 MOD 4 HDX™ HYBRID M16/AR15 Handguard

Heavy Duty Xtreme Rails are built for the rigors of daily use. All HDX™ series rails feature Nitride Hardened steel QD sockets to withstand daily sling carry.


Rail- 6000 series extruded Aluminum Milspec Type 3 Class 2 Hard Black anodized

Barrel Nut- 7075 Aluminum Type 3 Class 2 Hard Anodized

17-4PH Cored Stainless Steel Rail mounting attachment- Patent Pending

Anti rotate tabs time Rail to upper receiver

2 each 4140PH Alloy steel Nitride finished QD sling sockets inserts, 2 on each side

No Barrel nut shims required for installation

Does not contact or apply side loads to gas tube

Inner Diameter of handguard - 1.315"

Machine engraved T markings (not laser marked) will show up after paint.

Includes barrel nut wrench

Barrel Nut diameter- 1.378"

Compatible with most known low profile gas blocks

Overall rail dimensions1.96" wide x 2.195" height

11.7 ozs.-Total weight including mounting hardware and barrel nut.

Made & Assembled in USA

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