Monolithic M4 Le6945 Upper Group 10.3in With BCG And Sights
$1,311.99 at MidwayUSA · 5 stores
In stock
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 11.5" · Handguards
Specifications
- Manufacturer
- Colt
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $1,311.99checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $1,073.78Salechecked Oct 28, 2026 | Check store | Buy at Battlehawk Armory | |
| GrabAGun | $1,099.99Salechecked Nov 13, 2026 | Check store | Buy at GrabAGun | |
| Kentucky Gun Co | $1,202.99checked Nov 13, 2026 | Out of stock | Buy at Kentucky Gun Co | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $1,215.38checked Nov 13, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $1,229.00Salechecked Nov 13, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $1,184.50 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | — | $1,063.48 | $1,073.78 |
| Brownells | $1,215.38 | $1,215.38 | $1,215.38 |
| GrabAGun | $1,099.99 | $1,099.99 | $1,099.99 |
| Kentucky Gun Co | $1,202.99 | $1,184.50 | $1,202.99 |
| MidwayUSA | $1,311.99 | $1,291.99 | $1,311.99 |
| OpticsPlanet | $1,229.00 | $1,229.00 | $1,249.00 |
Since Sep 28, 2026.
About this part
The Monolithic M4 Le6943 Upper Group 11.5in With BCG And Sights is an AR-15 complete upper receiver from Colt. It's sold by 6 stores (1 in stock), from $1,073.78 to $1,311.99. The lowest in-stock price in the last 30 days was $1,184.50 at Kentucky Gun Co.
From the manufacturer
The LE6940 and LE6945 Upper Receiver Groups offer and upgrade over the traditional M4 setup. The LE6940 features Colt's monolithic upper receiver, which provides a one piece Picatinny top rail and rigid mounting surfaces all around, in addition to a completely free floated barrel. Built-in flip-up front sight is compatible with most standard height rear sights. Available with 16" or 10.3" chrome lined, 1-7 twist, button rifled barrel. Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply. Mfg: Colt
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