Does the FN America FN FN15 M4 Collector Stripped work with the Colt M4 5.56 Groups?
FN America lower and Colt upper compatibility
Yes, they fit
The FN America FN FN15 M4 Collector Stripped works with the Colt M4 5.56 Groups. 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.
FN America FN FN15 M4 vs Colt M4 5.56 Groups: specs and prices
| FN America FN FN15 M4 | Colt M4 5.56 Groups | |
|---|---|---|
| Best price | n/a | n/a |
| Stores | n/a | n/a |
| Assembly | Stripped | Stripped |
| Platform | AR-15 | AR-15 |
| Caliber | Multi | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Receiver Type | n/a | M4 |
| Length | n/a | 11.5 |