Does the CMMG Resolute MK3 8.6 Blackout 16.1 inch work with the Rubber City Armory Low Mass Competition?
Upper Receiver
CMMG Resolute MK3 8.6 Blackout 16.1 inch 1-3 Twist 5/8 X 24
from $999.99
Bolt Carrier Group
Rubber City Armory Low Mass Competition BCG w/ Adjustable
from $279.00
CMMG upper and Rubber City Armory bolt carrier group compatibility
Yes, they fit
The CMMG Resolute MK3 8.6 Blackout 16.1 inch 1-3 works with the Rubber City Armory Low Mass Competition BCG w/. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but CMMG uppers with Rubber City Armory 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 CMMG upper and Rubber City Armory bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
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 CMMG upper and Rubber City Armory 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
Fits both
Stock & Brace
Pistol Grip
Handguard
Fits both
Suppressor
CMMG Resolute MK3 8.6 Blackout vs Rubber City Armory Low Mass: specs and prices
| CMMG Resolute MK3 8.6 | Rubber City Armory Low Mass | |
|---|---|---|
| Best price | $999.99 at Optics Planet | $279.00 at Dirty Bird Industries |
| Stores | 0 of 1 in stock | 2 of 2 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 8.6 Blackout | n/a |
| Length | 16.1 | n/a |
| Cartridge | n/a | Multi |
| Style | n/a | Billet |
| Finish | n/a | Nitride |
Both for $1278.99 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
- CMMG Resolute MK3 8.6 Blackout 16.1 inch: lowest $999.99 on Jul 5, highest $999.99 on Jul 5 over the last 90 days.
- Rubber City Armory Low Mass Competition: lowest $279.00 on Jul 5, highest $289.00 on Jul 16 over the last 90 days.
Bolt Carrier Groups most paired with CMMG uppers
The CMMG Resolute MK3 8.6 Blackout 16.1 inch is not in enough builds yet, so these are the most picked next to any CMMG upper. Only parts our rules say fit the CMMG Resolute MK3 8.6 Blackout 16.1 inch are listed.
Upper Receivers most paired with Rubber City Armory bolt carrier groups
The Rubber City Armory Low Mass Competition is not in enough builds yet, so these are the most picked next to any Rubber City Armory bolt carrier group. Only parts our rules say fit the Rubber City Armory Low Mass Competition are listed.
