Does the Proof Research 6mm ARC AR-Type work with the Brownells Titanium 5.56x45mm DLC Mp?
Barrel
Proof Research 6mm ARC AR-Type
from $574.99
Bolt Carrier Group
Brownells Titanium 5.56x45mm DLC Mp
from $349.99
Proof Research barrel and Brownells bolt carrier group compatibility
They fit, with a catch
The Proof Research 6mm ARC AR-Type works with the Brownells Titanium 5.56x45mm DLC Mp, with one thing to check: Bolt Carrier Group (5.56 NATO) has a 5.56 / .223 bolt; a 6mm ARC build needs a 6.5 Grendel / 6mm ARC bolt.
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 Proof Research 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 Proof Research 6mm ARC AR-Type and any bolt carrier group
- This pairBrownells Titanium 5.56x45mm DLC Mp7%
Share of builds with the Brownells Titanium 5.56x45mm DLC Mp and any barrel
- This pairProof Research 6mm ARC AR-Type33%
Proof Research 6mm ARC AR-Type
- Of barrel picks
- 0.5%
- Median paid
- $578
Brownells Titanium 5.56x45mm DLC Mp
- Of bolt carrier group picks
- 0.1%
- Median paid
- $290
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 Proof Research 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.
Upper Receiver
Fits both
Handguard
Charging Handle
Pistol Grip
Lower Receiver
Fits both
Stock & Brace
Muzzle Device
Suppressor
Proof Research 6mm ARC AR-Type vs Brownells Titanium 5.56x45mm: specs and prices
| Proof Research 6mm ARC | Brownells Titanium 5.56x45mm | |
|---|---|---|
| Best price | $574.99 at Ammunition Depot | $349.99 at Brownells |
| Stores | 5 of 6 in stock | 0 of 1 in stock |
| Caliber | 6mm ARC | n/a |
| Gas System | Rifle | n/a |
| Length | 18 | n/a |
| Twist | 1:7 5R | n/a |
| Contour | SPR | n/a |
| Thread | 5/8x24 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 |
| Finish | n/a | DLC |
| Weight | 2.14 | n/a |
Both for $924.98 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
- Proof Research 6mm ARC AR-Type: lowest $493.49 on Aug 10, highest $649.99 on Sep 27 over the last 90 days.
- Brownells Titanium 5.56x45mm DLC Mp: lowest $349.99 on Aug 29, highest $349.99 on Aug 29 over the last 90 days.
Bolt Carrier Groups frequently paired with the Proof Research 6mm ARC AR-Type
Most picked next to it in real builds. Only parts our rules say fit the Proof Research 6mm ARC AR-Type are listed.
WMD Guns NIB-X® W/ Hammer
Fits, check noteCheck fit
WMD Guns 5.56 Without Hammer
Fits, check noteCheck fit
LMT Piston Full Auto 5.56
Fits, check noteCheck fit
Q 2-Piece BCG
Fits, check noteCheck fit
Barrels most paired with Brownells bolt carrier groups
The Brownells Titanium 5.56x45mm DLC Mp is not in enough builds yet, so these are the most picked next to any Brownells bolt carrier group. Only parts our rules say fit the Brownells Titanium 5.56x45mm DLC Mp are listed.
