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