Does the CMMG MK4/ Forward Assist Armor work with the Geissele Automatics Geissele 5.56mm?
Upper Receiver
CMMG MK4/ Forward Assist Armor
from $115.27
Bolt Carrier Group
Geissele Automatics Geissele 5.56mm Reliability Enhanced &
from $148.00
CMMG upper and Geissele bolt carrier group compatibility
Yes, they fit
The CMMG MK4/ Forward Assist Armor works with the Geissele Automatics Geissele 5.56mm Reliability. 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.
CMMG MK4/ Forward Assist Armor vs Geissele Automatics Geissele: specs and prices
| CMMG MK4/ Forward Assist | Geissele Automatics Geissele | |
|---|---|---|
| Best price | $115.27 at BattleHawk Armory | $148.00 at Primary Arms |
| Stores | 0 of 2 in stock | 1 of 3 in stock |
| Assembly | Stripped | n/a |
| Platform | AR-15 | n/a |
| Receiver Type | A4 | n/a |
| Cartridge | n/a | 5.56 NATO |
Both for $263.27 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
- CMMG MK4/ Forward Assist Armor: lowest $115.27 on Jul 5, highest $129.79 on Jul 26 over the last 90 days.