Does the LMT MARS-L Stripped work with the KAK Industry DEMO KAK Industry K-SPEC?

Lower Receiver
LMT MARS-L Stripped
from $320.99

Bolt Carrier Group
KAK Industry DEMO KAK Industry K-SPEC Enhanced 7.62x39mm
from $225.99
Lewis Machine & Tool lower and KAK Industry bolt carrier group compatibility
Yes, they fit
The LMT MARS-L Stripped works with the KAK Industry DEMO KAK Industry K-SPEC Enhanced. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Lewis Machine & Tool lowers with KAK Industry bolt carrier groups 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 KAK Industry bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the LMT MARS-L Stripped and any bolt carrier group
LMT MARS-L Stripped
- Of lower picks
- 2.4%
- Median paid
- $306
KAK Industry DEMO KAK Industry K-SPEC
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 KAK Industry bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Pistol Grip
Charging Handle
Stock & Brace
Barrel

Daniel Defense 16" 5.56 NATO CHF Mid-Length 1:7
Fits, check note
LMT MARS-L Stripped vs KAK Industry DEMO KAK Industry: specs and prices
| LMT MARS-L Stripped | KAK Industry DEMO KAK | |
|---|---|---|
| Best price | $342.00 at BattleHawk Armory | $225.99 at Optics Planet |
| Stores | 3 of 4 in stock | 0 of 1 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Cartridge | n/a | 7.62x39mm |
Both for $567.99 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-L Stripped: lowest $320.99 on Jul 5, highest $352.35 on Jul 11 over the last 90 days.
- KAK Industry DEMO KAK Industry K-SPEC: lowest $225.99 on Jul 5, highest $225.99 on Jul 5 over the last 90 days.
Bolt Carrier Groups frequently paired with the LMT MARS-L Stripped
Most picked next to it in real builds. Only parts our rules say fit the LMT MARS-L Stripped are listed.
Lower Receivers most paired with KAK Industry bolt carrier groups
The KAK Industry DEMO KAK Industry K-SPEC is not in enough builds yet, so these are the most picked next to any KAK Industry bolt carrier group. Only parts our rules say fit the KAK Industry DEMO KAK Industry K-SPEC are listed.

















