Cross Machine Tool UHPR MOD 3 HDX AR-15 Handguard - 12.5"

Name: Cross Machine Tool UHPR MOD 3 HDX AR-15 Handguard - 12.5"
Brand: CMT

CMT · Rails & Handguards

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Cross Machine Tool UHPR MOD 3 HDX AR-15 Handguard - 12.5"

Best price

$190.00at AR15Discounts

checked Nov 13, 2026

Buy at AR15Discounts

Compare 2 stores

Fits and works with

Handguard length: 12.5" · Barrels

Specifications

Manufacturer: CMT
Platform: AR-15
Length: 12.5"

Where to buy

Store	Price	Availability	Buy	Add to build
AR15Discounts Best price 5% off	$190.00checked Nov 13, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$190.00checked Nov 13, 2026	Check store	Buy at Dirty Bird

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Oct 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
AR15Discounts	$190.00	$190.00	$190.00
Dirty Bird	$190.00	$190.00	$190.00

Since Oct 28, 2026.

About this part

The Cross Machine Tool UHPR MOD 3 HDX AR-15 Handguard - 12.5" is a 12.5" AR-15 handguard from CMT. It's sold by 2 stores, all at $190.00.

From the manufacturer

Heavy Duty Xtreme Rails are built for the rigors of daily use. All HDX(TM) series rails feature Nitride Hardened steel QD sockets to withstand daily sling carry. Features- 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 dimensions 1.96" wide x 2.195" height Made & Assembled in USA