Does the Colt M4 Commando 5.56mm Semi-Auto work with the Geissele Automatics Reliability?
Lower Receiver
Colt M4 Commando 5.56mm Semi-Auto
from $449.99
Bolt Carrier Group
Geissele Automatics Reliability Enhancement KIT H3
from $455.00
Colt lower and Geissele bolt carrier group compatibility
Yes, they fit
The Colt M4 Commando 5.56mm Semi-Auto works with the Geissele Automatics Reliability Enhancement KIT. 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 Colt lower and Geissele bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Colt M4 Commando 5.56mm Semi-Auto and any bolt carrier group
- Colt 5.5612%
Share of builds with the Geissele Automatics Reliability and any lower
- This pairColt M4 Commando 5.56mm Semi-Auto11%
Colt M4 Commando 5.56mm Semi-Auto
- Of lower picks
- 0.7%
- Median paid
- $450
Geissele Automatics Reliability
- Of bolt carrier group picks
- 0.3%
- Median paid
- $368
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 Colt lower and Geissele bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Stock & Brace
Upper Receiver
Suppressor
Colt M4 Commando 5.56mm vs Geissele Automatics: specs and prices
| Colt M4 Commando 5.56mm | Geissele Automatics | |
|---|---|---|
| Best price | $449.99 at Palmetto State Armory | $455.00 at BattleHawk Armory |
| Stores | 0 of 1 in stock | 0 of 4 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | M16 Bolt Carrier |
| Finish | n/a | Black |
Both for $904.99 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
- Colt M4 Commando 5.56mm Semi-Auto: lowest $449.99 on Aug 24, highest $449.99 on Aug 24 over the last 90 days.
- Geissele Automatics Reliability: lowest $444.60 on Jul 5, highest $494.00 on Jul 20 over the last 90 days.
Bolt Carrier Groups frequently paired with the Colt M4 Commando 5.56mm Semi-Auto
Most picked next to it in real builds. Only parts our rules say fit the Colt M4 Commando 5.56mm Semi-Auto are listed.
Lower Receivers frequently paired with the Geissele Automatics Reliability
Most picked next to it in real builds. Only parts our rules say fit the Geissele Automatics Reliability are listed.
