Does the Centurion Arms CM4 5.56 Forged work with the Rain Bromurlbk Rain OrdnanceAR15 Upper?
Lower Receiver
Centurion Arms CM4 5.56 Forged
from $128.25
Upper Receiver
Rain Bromurlbk Rain OrdnanceAR15 Upper .223/5.56 NATO
from $217.69
Centurion Arms lower and Black Rain Ordnance upper compatibility
Yes, they fit
The Centurion Arms CM4 5.56 Forged works with the Rain Bromurlbk Rain OrdnanceAR15 Upper .223/5.56. Our compatibility rules found no conflict between them.
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.
Centurion Arms CM4 5.56 Forged vs Rain Bromurlbk Rain: specs and prices
| Centurion Arms CM4 5.56 | Rain Bromurlbk Rain | |
|---|---|---|
| Best price | $128.25 at Primary Arms | $259.99 at Optics Planet |
| Stores | 1 of 1 in stock | 1 of 2 in stock |
| Assembly | Stripped | Stripped |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
Both for $388.24 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
- Centurion Arms CM4 5.56 Forged: lowest $128.25 on Jul 7, highest $128.25 on Jul 7 over the last 90 days.
- Rain Bromurlbk Rain OrdnanceAR15 Upper: lowest $217.69 on Jul 12, highest $299.99 on Aug 8 over the last 90 days.