Does the Daniel Defense 14.5" 5.56 M4A1 Upper work with the Geissele Automatics Reliability?
Upper Receiver
Daniel Defense 14.5" 5.56 M4A1 Upper
from $1544.00
Bolt Carrier Group
Geissele Automatics Reliability Enhancement KIT H1
from $425.00
Daniel Defense upper and Geissele bolt carrier group compatibility
Yes, they fit
The Daniel Defense 14.5" 5.56 M4A1 Upper works with the Geissele Automatics Reliability Enhancement KIT. 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.
Daniel Defense 14.5" 5.56 M4A1 vs Geissele Automatics: specs and prices
| Daniel Defense 14.5" 5.56 | Geissele Automatics | |
|---|---|---|
| Best price | $1544.00 at Primary Arms | $425.00 at Brownells |
| Stores | 3 of 6 in stock | 0 of 4 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Carbine | n/a |
| Caliber | 5.56 NATO | n/a |
| Length | 14.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 Bolt Carrier |
| Finish | n/a | Black |
Both for $1969.00 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.
Daniel Defense 14.5" 5.56 M4A1 Upper
Price history, last 90 days
- Daniel Defense 14.5" 5.56 M4A1 Upper: lowest $1339.99 on Jul 21, highest $1621.00 on Aug 2 over the last 90 days.
- Geissele Automatics Reliability: lowest $377.40 on Jul 5, highest $444.00 on Jul 7 over the last 90 days.