Does the Ballistic Advantage OPMOD Modern Series work with the Brownells MP?

Barrel
Ballistic Advantage OPMOD Modern Series 5.56 16 in Mid
from $133.99

Bolt Carrier Group
Brownells MP
from $108.34
Ballistic Advantage barrel and Brownells bolt carrier group compatibility
Yes, they fit
The Ballistic Advantage OPMOD Modern Series 5.56 16 works with the Brownells MP. Our compatibility rules found no conflict between them.
This exact setup has been built more than once on GunPartPicker.
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 Ballistic Advantage barrel and Brownells bolt carrier group
Backed by thousands of qualified builds that have both a barrel and a bolt carrier group.
Share of builds with the Ballistic Advantage OPMOD Modern Series and any bolt carrier group
- This pairBrownells MP29%
- KAK Industry14%
Share of builds with the Brownells MP and any barrel
- This pairBallistic Advantage OPMOD Modern Series 5.56 1620%
Ballistic Advantage OPMOD Modern Series
- Of barrel picks
- 0.1%
- Median paid
- $95
Brownells MP
- Of bolt carrier group picks
- 0.1%
- Median paid
- $118
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 Ballistic Advantage barrel and Brownells bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Trigger
Upper Receiver

Palmetto State Armory Blem PSA
Unconfirmed
Pistol Grip
Muzzle Device

KAK Industry Retro A1 Flash Hider 1/2-28
Unconfirmed
Stock & Brace
Charging Handle
Ballistic Advantage OPMOD vs Brownells MP: specs and prices
| Ballistic Advantage OPMOD | Brownells MP | |
|---|---|---|
| Best price | $133.99 at Brownells | $108.34 at Brownells |
| Stores | 4 of 4 in stock | 0 of 1 in stock |
| Caliber | 5.56 NATO | n/a |
| Gas System | Mid-Length | n/a |
| Length | 16 | n/a |
| Contour | Government | n/a |
| Cartridge | n/a | Multi |
| Finish | n/a | Phosphate |
Both for $242.33 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
- Ballistic Advantage OPMOD Modern Series: lowest $156.75 on Jul 22, highest $156.75 on Jul 22 over the last 90 days.
- Brownells MP: lowest $108.34 on Aug 29, highest $142.99 on Jul 12 over the last 90 days.
Bolt Carrier Groups frequently paired with the Ballistic Advantage OPMOD Modern Series
Most picked next to it in real builds. Only parts our rules say fit the Ballistic Advantage OPMOD Modern Series are listed.
Barrels frequently paired with the Brownells MP
Most picked next to it in real builds. Only parts our rules say fit the Brownells MP are listed.















