Does the Cross Machine Tool UHP15 Billet Stripped work with the JP Enterprises Aluminum Ultra Low Mass?

Lower Receiver
Cross Machine Tool UHP15 Billet Stripped
from $2089.99

Bolt Carrier Group
JP Enterprises Aluminum Ultra Low Mass Bolt Carrier w/
from $259.99
lower and JP Enterprises bolt carrier group compatibility
Yes, they fit
The Cross Machine Tool UHP15 Billet Stripped works with the JP Enterprises Aluminum Ultra Low Mass Bolt. Our compatibility rules found no conflict between them.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the lower and JP Enterprises bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Cross Machine Tool UHP15 Billet Stripped and any bolt carrier group
- LMT Defense .308 Piston Carrier GroupDoes not fit8%
- JP Enterprises AR-10 Variable Mass OperatingDoes not fit8%
Cross Machine Tool UHP15 Billet Stripped
- Of lower picks
- 0.1%
- Median paid
- $2019
JP Enterprises Aluminum Ultra Low Mass
- Of bolt carrier group picks
- 0%
- Median paid
- n/a
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the lower and JP Enterprises bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Upper Receiver
Suppressor
Stock & Brace
Charging Handle
Rifle Scope
Pistol Grip
Cross Machine Tool UHP15 vs JP Enterprises Aluminum Ultra: specs and prices
| Cross Machine Tool UHP15 | JP Enterprises Aluminum | |
|---|---|---|
| Best price | $2292.99 at Palmetto State Armory | $339.95 at Dirty Bird Industries |
| Stores | 1 of 3 in stock | 2 of 3 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Nitride |
Both for $2632.94 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Price history, last 90 days
- Cross Machine Tool UHP15 Billet Stripped: lowest $2018.79 on Jul 6, highest $2169.99 on Jul 12 over the last 90 days.
- JP Enterprises Aluminum Ultra Low Mass: lowest $339.95 on Jul 12, highest $349.95 on Jul 11 over the last 90 days.
Bolt Carrier Groups frequently paired with the Cross Machine Tool UHP15 Billet Stripped
Most picked next to it in real builds. Only parts our rules say fit the Cross Machine Tool UHP15 Billet Stripped are listed.

ODIN Works Enhanced 9mm Nitride
Fits, check noteCheck fit




Lower Receivers most paired with JP Enterprises bolt carrier groups
The JP Enterprises Aluminum Ultra Low Mass is not in enough builds yet, so these are the most picked next to any JP Enterprises bolt carrier group. Only parts our rules say fit the JP Enterprises Aluminum Ultra Low Mass are listed.














