Price history at Brownells.com
Recorded at Brownells.com since Oct 9, 2026: low $1,059.00 (Oct 9, 2026), high $1,215.38 (Oct 11, 2026). Last checked Oct 11, 2026.
From the store's product feed and AvantLink's price records; feeds can lag the store's own site.
Product Description
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
M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6943 Upper Group 11.5in With Bcg And Sights
$1215.38
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