Does the LMT MARS-LS PDW work with the Proof Research PR15 Stainless Steel 6mm?
Lower Receiver
LMT MARS-LS PDW
from $989.99
Barrel
Proof Research PR15 Stainless Steel 6mm ARC 20in RIFLE+1
from $493.49
Lewis Machine & Tool lower and Proof Research barrel compatibility
Yes, they fit
The LMT MARS-LS PDW works with the Proof Research PR15 Stainless Steel 6mm ARC 20in. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Lewis Machine & Tool lowers with Proof Research barrels are a common pairing.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
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 Lewis Machine & Tool lower and Proof Research barrel
Backed by thousands of qualified builds that have both a lower and a barrel.
Share of builds with the LMT MARS-LS PDW and any barrel
LMT MARS-LS PDW
- Of lower picks
- 2.4%
- Median paid
- $1020
Proof Research PR15 Stainless Steel 6mm
Not in enough builds yet to report.
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 Lewis Machine & Tool lower and Proof Research barrel
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Upper Receiver
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf
Fits, check note
Stock & Brace
Suppressor
Bolt Carrier Group
Fits, check note
LMT MARS-LS PDW vs Proof Research PR15 Stainless: specs and prices
| LMT MARS-LS PDW | Proof Research PR15 | |
|---|---|---|
| Best price | $990.00 at BattleHawk Armory | $493.49 at Ammunition Depot |
| Stores | 2 of 3 in stock | 6 of 6 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Caliber | n/a | 6mm ARC |
| Gas System | n/a | Rifle |
| Length | n/a | 20 |
| Thread | n/a | 5/8x24 |
Both for $1483.49 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
- LMT MARS-LS PDW: lowest $908.10 on Aug 23, highest $1019.70 on Jul 5 over the last 90 days.
- Proof Research PR15 Stainless Steel 6mm: lowest $493.49 on Jul 27, highest $649.99 on Aug 15 over the last 90 days.
Barrels frequently paired with the LMT MARS-LS PDW
Most picked next to it in real builds. Only parts our rules say fit the LMT MARS-LS PDW are listed.
Lower Receivers most paired with Proof Research barrels
The Proof Research PR15 Stainless Steel 6mm is not in enough builds yet, so these are the most picked next to any Proof Research barrel. Only parts our rules say fit the Proof Research PR15 Stainless Steel 6mm are listed.
