
In Stock
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6940 Upper Group 16in With Bcg And Sights
Sold byBrownells•Posted Apr 28, 2026
Compare prices for Colt Monolithic AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel$1,059.00
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Deal Summary
- Currently in stock.
- Caliber: 223/5.56
- Category: parts
- UPC: 098289035288
- SKU: 160000387
- Brand: Colt
Price History
Deal Details
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
Other Offers for This Product
Active offers from your catalog for Colt Monolithic AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel.
Comparing 5 retailers carrying this product
Lowest Price: $925.77
Highest Price: $1,150.99
You Save: $225.22
Avg Discount: 7% off

Colt Mfg LE6940CK 223 Rem,5.56 NATO Black 16.10 Black Barrel
Colt ManufacturingBattleHawk ArmorySKU/UPC: 098289035288
$925.77$1,219.00Save 24%
View at BattleHawk Armory
Colt Firearms LE6940CK UPPER KIT 5.56
Colt FirearmsGrabAGunSKU/UPC: GAG_LE6940CK-92637
$959.99
View at GrabAGun
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6940 Upper Group 16in With Bcg And Sights
ColtBrownellsSKU/UPC: 160000387
$1,059.00
View at Brownells
Colt Monolithic AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel
ColtMidwayUSASKU/UPC: 913906
$1,149.99
View at MidwayUSA
Colt .223 Rem/5.56 16" Barrel Monolithic Upper Receiver Assembly - LE6940CK
ColtPalmetto State ArmorySKU/UPC: 792636
$1,150.99$1,277.99Save 10%
View at Palmetto State Armory