Does the Lewis Machine & Tool MARS-H SOPMOD work with the CMMG MK3 6.5 Creedmoor?

Lower Receiver
Lewis Machine & Tool MARS-H SOPMOD
from $1306.99

Bolt Carrier Group
CMMG MK3 6.5 Creedmoor
from $219.54
Lewis Machine & Tool lower and CMMG bolt carrier group compatibility
Yes, they fit
The Lewis Machine & Tool MARS-H SOPMOD works with the CMMG MK3 6.5 Creedmoor. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
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 CMMG bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Lewis Machine & Tool MARS-H SOPMOD and any bolt carrier group
- This pairCMMG MK3 6.5 Creedmoor8%
Share of builds with the CMMG MK3 6.5 Creedmoor and any lower
- This pairLewis Machine & Tool MARS-H SOPMOD14%
Lewis Machine & Tool MARS-H SOPMOD
- Of lower picks
- 0.1%
- Median paid
- $1214
CMMG MK3 6.5 Creedmoor
- Of bolt carrier group picks
- 0.1%
- Median paid
- $219
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 CMMG bolt carrier group
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

PSA GEN3 PA65 20" Rifle-Length 6.5 Creedmoor 1/8
Fits, check note
Stock & Brace
Suppressor
Rifle Scope
Lewis Machine & Tool MARS-H vs CMMG MK3 6.5 Creedmoor: specs and prices
| Lewis Machine & Tool MARS-H | CMMG MK3 6.5 Creedmoor | |
|---|---|---|
| Best price | $1363.50 at Brownells | $265.99 at Optics Planet |
| Stores | 2 of 5 in stock | 3 of 4 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 6.5 Creedmoor | n/a |
| Cartridge | n/a | 6.5 Creedmoor |
| Style | n/a | Billet |
| Finish | n/a | Nitride |
Both for $1629.49 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
- Lewis Machine & Tool MARS-H SOPMOD: lowest $1214.10 on Jul 6, highest $1514.99 on Sep 27 over the last 90 days.
- CMMG MK3 6.5 Creedmoor: lowest $219.54 on Jul 5, highest $283.77 on Jul 6 over the last 90 days.
Bolt Carrier Groups frequently paired with the Lewis Machine & Tool MARS-H SOPMOD
Most picked next to it in real builds. Only parts our rules say fit the Lewis Machine & Tool MARS-H SOPMOD are listed.
Lower Receivers frequently paired with the CMMG MK3 6.5 Creedmoor
Most picked next to it in real builds. Only parts our rules say fit the CMMG MK3 6.5 Creedmoor are listed.

















