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Colt LE6920 EPR Complete Upper (16" M-LOK)

Colt's M4A1-TDP upper with a Centurion Arms 13" M-LOK free-float rail. Drop-on for any mil-spec lower.

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Quick Specs

Price
$1,149
Weight
3 lb 12 oz
Brand
Colt
Category
upper

Features

  • •5.56 NATO / .223 Rem, 16" CHF chrome-lined barrel, 1:7 twist
  • •Carbine-length gas, 1/2x28 muzzle threads
  • •Centurion Arms CMR 13" M-LOK free-float handguard
  • •Colt mil-spec BCG (chrome-lined carrier and gas key) and charging handle
  • •MBUS Pro folding sights front and rear

Capability Boosts

Reliability+2
Modularity+2

Recommended For

Duty/Patrol+4
Home Defense+2
Competition+2
Outdoor Defense+2

Compatibility Tags

family: modern-riflefamily: ar-patterninterface: picatinny-tophandguard: mlokbarrel: longthread: 1/2x28

Overview

The LE6920EPR-CK is Colt's complete upper assembly built around the same M4A1 Technical Data Package barrel, bolt carrier group, and charging handle Colt produced under the U.S. military M4 contract, paired with a Centurion Arms CMR 13-inch free-float M-LOK handguard. The barrel is mil-spec chrome-moly steel, magnetic-particle inspected, fully chrome lined, and finished with a 1/2x28 threaded muzzle and standard A2 birdcage. The upper receiver is 7075-T6 aluminum with Type III hard-coat anodizing, M4 feed ramps, white T-marks, and an interior gray dry-lube coating. The included BCG uses Colt's mil-spec chrome-lined gas key and properly staked Grade 8 fasteners. This is the right answer for an existing LE6920 owner who wants to upgrade to a free-float, M-LOK platform without buying a whole new rifle, and it drops directly onto any standard mil-spec AR-15 lower.

Key Features

  • ✓16" mil-spec CHF chrome-lined barrel with M4 profile, 1:7 twist
  • ✓Carbine-length gas system with low-profile gas block
  • ✓1/2x28 threaded muzzle with A2 birdcage flash hider installed
  • ✓Centurion Arms CMR 13" free-float M-LOK rail with full-length top Picatinny
  • ✓Colt mil-spec BCG with chrome-lined carrier and properly staked gas key
  • ✓Colt mil-spec charging handle
  • ✓MBUS Pro folding backup sights (front and rear) included
  • ✓M4 feed ramps machined into upper and barrel extension

Pros

  • +Same Colt M4A1-TDP barrel and BCG quality as the LE6920 rifle
  • +Centurion CMR rail is a high-quality free-float upgrade over MOE polymer
  • +Drops on any mil-spec lower, no gunsmithing required
  • +Includes BCG, charging handle, and MBUS Pro sights (no extra purchases needed)
  • +M-LOK accessory mounting at 3, 6, 9 o'clock positions

Cons

  • −Heavier 13" rail adds weight versus minimalist M-LOK options
  • −A2 birdcage is fine but not suppressor-ready without a swap
  • −Carbine-length gas runs hotter than mid-length on a 16" barrel
  • −Premium pricing for an upper-only assembly versus full rifle alternatives

Detailed Specifications

forging
7075-T6 aluminum upper receiver
Material
Mil-spec chrome-moly steel barrel, MPI tested, fully chrome lined
finish
Type III hard coat anodized receiver, mil-spec phosphate barrel
forwardAssist
Yes
shellDeflector
Yes
barrelLength
16"
gasSystem
Carbine-length
twist
1:7
handguard
Centurion Arms CMR 13" M-LOK free-float
bcg
Colt mil-spec, chrome-lined carrier and gas key
chargingHandle
Colt mil-spec
sights
MBUS Pro folding (front and rear) included
threadPitch
1/2x28
muzzleDevice
A2 birdcage flash hider

Compatible Platforms

+146 more

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Custom Tactical AKM (7.62x39)

Custom

Custom AR-15 (Build From Scratch)

Custom

Custom AR-9 (Build From Scratch)

Custom

Custom Precision Rifle (R700 Footprint)

Ruger

Ruger American Rifle Gen II Predator

Bergara

Bergara B-14 HMR

Pairs Well With

Top matches

B&T

B&T APC223

5 shared compatibility tags

Excellent

Sig Sauer

Sig MCX Virtus Patrol 16"

5 shared compatibility tags

Excellent

Sig Sauer

Sig Sauer 716i TREAD 16"

5 shared compatibility tags

Excellent

Daniel Defense

Daniel Defense DD5 V4

5 shared compatibility tags

Excellent

POF-USA

POF-USA Revolution DI 6.5 Creedmoor 20"

5 shared compatibility tags

Excellent

Daniel Defense

Daniel Defense DD5 V5 6.5 Creedmoor

5 shared compatibility tags

Excellent

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