Does the Aero Precision M4A1 Clone work with the Proof Research 6mm ARC AR-Type?
Aero Precision lower and Proof Research barrel compatibility
Yes, they fit
The Aero Precision M4A1 Clone 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 Aero Precision lower and Proof Research barrel
Backed by thousands of qualified builds that have both a lower and a barrel.
Share of builds with the Aero Precision M4A1 Clone and any barrel
- This pairProof Research 6mm ARC AR-Type1%
Share of builds with the Proof Research 6mm ARC AR-Type and any lower
- This pairAero Precision M4A1 Clone10%
Aero Precision M4A1 Clone
- Of lower picks
- 2.1%
- Median paid
- $130
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 Aero Precision 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.
Aero Precision M4A1 Clone vs Proof Research 6mm ARC AR-Type: specs and prices
| Aero Precision M4A1 Clone | Proof Research 6mm ARC | |
|---|---|---|
| Best price | $129.99 at Brownells | $574.99 at Ammunition Depot |
| Stores | 0 of 3 in stock | 5 of 6 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | 6mm ARC |
| Trigger Pin | .154 | n/a |
| 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 | 8.35 | 2.14 |
Both for $704.98 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
- Aero Precision M4A1 Clone: lowest $111.87 on Aug 18, highest $129.99 on Jul 5 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 Aero Precision M4A1 Clone
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4A1 Clone 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.





















