Does the Stag Arms Tactical Lower 5.56/223 work with the Daniel Defense MK18 RIS III 10.3" 5.56?
Lower Receiver
Stag Arms Tactical Lower 5.56/223
Upper Receiver
Daniel Defense MK18 RIS III 10.3" 5.56 NATO
from $1454.00
Stag Arms lower and Daniel Defense upper compatibility
Yes, they fit
The Stag Arms Tactical Lower 5.56/223 works with the Daniel Defense MK18 RIS III 10.3" 5.56 NATO. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
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 Stag Arms lower and Daniel Defense upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Stag Arms Tactical Lower 5.56/223 and any upper
- This pairDaniel Defense MK18 RIS III 10.3" 5.56 NATO33%
Share of builds with the Daniel Defense MK18 RIS III 10.3" 5.56 and any lower
- This pairStag Arms Tactical Lower 5.56/22314%
Stag Arms Tactical Lower 5.56/223
- Of lower picks
- 0%
- Median paid
- n/a
Daniel Defense MK18 RIS III 10.3" 5.56
- Of upper picks
- 0%
- Median paid
- $1412
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 Stag Arms lower and Daniel Defense upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Radian Raptor & Talon Safety Selector Combo
Unconfirmed
Stock & Brace
Bolt Carrier Group
Fits both
Pistol Grip
Suppressor
Stag Arms Tactical Lower vs Daniel Defense MK18 RIS III: specs and prices
| Stag Arms Tactical Lower | Daniel Defense MK18 RIS III | |
|---|---|---|
| Best price | n/a | $1454.00 at BattleHawk Armory |
| Stores | n/a | 4 of 5 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Length | n/a | 10.3 |
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
- Daniel Defense MK18 RIS III 10.3" 5.56: lowest $1259.99 on Jul 21, highest $1527.00 on Sep 24 over the last 90 days.
Upper Receivers most paired with Stag Arms lowers
The Stag Arms Tactical Lower 5.56/223 is not in enough builds yet, so these are the most picked next to any Stag Arms lower. Only parts our rules say fit the Stag Arms Tactical Lower 5.56/223 are listed.
Lower Receivers frequently paired with the Daniel Defense MK18 RIS III 10.3" 5.56
Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense MK18 RIS III 10.3" 5.56 are listed.
