Does the Ke Arms Ke-15 Forged 5.56mm work with the Proof Research 6mm ARC AR-Type?
Lower Receiver
Ke Arms Ke-15 Forged 5.56mm
from $196.99
Barrel
Proof Research 6mm ARC AR-Type
from $574.99
KE Arms lower and Proof Research barrel compatibility
Yes, they fit
The Ke Arms Ke-15 Forged 5.56mm works with the Proof Research 6mm ARC AR-Type. 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 KE Arms lower and Proof Research barrel
Backed by thousands of qualified builds that have both a lower and a barrel.
Share of builds with the Ke Arms Ke-15 Forged 5.56mm and any barrel
- This pairProof Research 6mm ARC AR-Type5%
Share of builds with the Proof Research 6mm ARC AR-Type and any lower
- This pairKe Arms Ke-15 Forged 5.56mm10%
Ke Arms Ke-15 Forged 5.56mm
- Of lower picks
- 0.4%
- Median paid
- $197
Proof Research 6mm ARC AR-Type
- Of barrel picks
- 0.5%
- Median paid
- $578
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 KE Arms lower and Proof Research barrel
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
Radical Firearms 5.56 Barreled Upper
Fits, check note
Handguard
TacFire Maximize Your 's Potential
Fits both
Bolt Carrier Group
Fits, check note
Muzzle Device
Gas Block
Pistol Grip
Buffer Tube Assembly
Stock & Brace
Ke Arms Ke-15 Forged 5.56mm vs Proof Research 6mm ARC AR-Type: specs and prices
| Ke Arms Ke-15 Forged 5.56mm | Proof Research 6mm ARC | |
|---|---|---|
| Best price | $196.99 at KY Gun Company | $574.99 at Ammunition Depot |
| Stores | 0 of 2 in stock | 5 of 6 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | 6mm ARC |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Gas System | n/a | Rifle |
| Length | n/a | 18 |
| Twist | n/a | 1:7 5R |
| Contour | n/a | SPR |
| Thread | n/a | 5/8x24 |
| Weight | n/a | 2.14 |
Both for $771.98 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
- Ke Arms Ke-15 Forged 5.56mm: lowest $196.99 on Jul 5, highest $299.95 on Aug 30 over the 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.
Barrels frequently paired with the Ke Arms Ke-15 Forged 5.56mm
Most picked next to it in real builds. Only parts our rules say fit the Ke Arms Ke-15 Forged 5.56mm are listed.
Lower Receivers 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.
