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M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6945 Upper Group 10.3in With Bcg And Sights
In Stock

Caliber

223/5.56

Type

parts

Last Seen

May 20, 2026

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6945 Upper Group 10.3in With Bcg And Sights

Sold byBrownellsPosted Apr 28, 2026
Compare prices for Colt Monolithic AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 10.3" Barrel

$1,059.00

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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

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Lowest Price: $1,059.00

Highest Price: $1,291.99

You Save: $232.99

Avg Discount: 2% off

Best PriceCurrent Deal
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6945 Upper Group 10.3in With Bcg And Sights

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6945 Upper Group 10.3in With Bcg And Sights

ColtBrownellsSKU/UPC: 160710154
$1,059.00
View at Brownells
Colt  5.56 Nato 10.3in Upper Reciever Kit Black 1214736

Colt 5.56 Nato 10.3in Upper Reciever Kit Black 1214736

ColtOptics PlanetSKU/UPC: 14J-UFH-1214736-LE6945CK
$1,269.00$1,369.00Save 7%
View at Optics Planet
Colt Monolithic AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 10.3" Barrel

Colt Monolithic AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 10.3" Barrel

ColtMidwayUSASKU/UPC: 761891
$1,291.99
View at MidwayUSA