

Click to see full view
This is a serialized firearm.
Cross Machine Tool
Overview
The Cross Machine Tool Uhp15-Ss Billet AR-15 Stripped Lower Receiver is a high-quality component designed for builders looking to create a robust and reliable rifle. With its ambidextrous controls, this lower receiver offers versatile operation for both left and right-handed shooters, while the hardcoat anodized finish enhances durability and resistance to wear. This stripped lower is compatible with standard AR-15 components and is specifically suited for builds using a rifle gas system and chambered in .450 Bushmaster.
Log in to set a price alert on this product.
No Available merchants at this time.
Builders have been adding the Cross Machine Tool UHP15-SS Billet AR-15 Stripped Lower Receiver to their builds on GunPartPicker since March 2026. All time, it ranks #522 of the 1,005 lower receivers builders have added.
Updated · from real builds on GunPartPicker
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →Check it against the live catalog:
The part most often added in each category by the builds that include this one

Luth-AR AR-15 Upper Receiver Assembly

Radian Raptor Slim Line Ambidextrous AR-15 Charging Handle - Black

Ke Arms M16 Bolt Carrier W/ Upgraded Gas Key Chrome

Geissele Automatics B-G2S-E Geissele 2 Stage Enhanced Trigger

Magpul MOE SL-M Carbine Stock Mil-Spec OD Green

Bravo Company KMR Alpha Keymod Handguard 17" Black
Aggregated and anonymized data showing how builders use this product
No reviews yet. Be the first to review this product!