Colt m4 Carbine for sale
(17)
Colt Firearms M4 Carbine 5.56 NATO / .223 Rem 16.1" Barrel 30-Rounds
Brand:
Colt
Action:
Bolt Action
Barrel Length:
16.1in
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Black
(13)
COLT M4 CARBINE
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Colt M4 OEM1 .223 Rem/5.56 AR-15 Carbine - LE6920-OEM1
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1in
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Colt Defense LE6920-FBP M4 Carbine .223 16.1" Barrel Geissele 13"MK4 Rail 30-SHOT
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16in
Caliber:
.223 Rem/5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(1)
COLT M4 LE TROOPER
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1
Caliber:
.223 Rem/5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Colt Firearms M4 Carbine Black / Flat Dark Earth 5.56 16.1" Barrel 30-Rounds
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Black / Flat Dark Earth
(11)
Colt M4 Carbine 5.56 NATO Rifle - LE6920
Brand:
Colt
Barrel Length:
16.1 BARREL
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
Rounds:
30
(0)
Colt M4 Carbine 5.56 16" Black 4-rail LE6940
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1"
Caliber:
.223 Rem
Capacity:
20+1
Finish Per Color:
Black
(0)
Colt M4 Carbine Federal Patrol 5.56 AR-15 Semi-Automatic Rifle
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.10"
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Black
(0)
Colt Rifle M4 Magpul MOE FDE 16" 5.56nato LE6920MPS-FDE Display Model
Brand:
Colt
Barrel Length:
16.1"
Caliber:
5.56×45mm NATO
Capacity:
30+1
Finish Per Color:
Flat Dark Earth, Black
(0)
WALTHER COLT M4 22LR MUDDY GIRL CAMO CARBINE
Brand:
Walther
Barrel Length:
16.2"
Caliber:
.22 LR
(0)
Colt M4 Carbine 5.56x45 NATO Magpul Wildfire Camo Rifle
Brand:
Colt
Barrel Length:
16.1"
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(9)
Colt M4 Carbine .22lr Made by Walther 5760300
Brand:
Walther
Barrel Length:
16.2 in
Caliber:
.22 LR
Capacity:
30+1
(0)
Colt Expanse M4 5.56 NATO Rifle - CE2000
Brand:
Colt
Barrel Length:
16.1"
Caliber:
.223 Rem/5.56×45mm NATO
Capacity:
30+1
(1)
Colt Expanse 16" M4 Carbine Rifle - CE1000
Brand:
Colt
Barrel Length:
16.1"
Caliber:
5.56×45mm NATO
Capacity:
30+1
(1)
Colt CR6920 M4 Carbine 5.56mm with Burnt Bronze Finish
Brand:
Colt
Action:
DIRECT IMPINGEMENT
Barrel Length:
16 BARREL
Caliber:
.223 Rem/5.56×45mm NATO
Capacity:
30
(0)
COLT CLT CRB A2 M4 16.1 5.56 30
Brand:
Colt
Action:
Semi-Auto
Barrel Length:
16.1"
Caliber:
.223 Rem/5.56×45mm NATO
Marketplace Insights
★ 4.7/5
based on 53 customer reviews across 18 variants from 34 retailers
Highly-rated Colt rifles praised for reliability and value, though some users report quality control and fit/finish inconsistencies.
What customers like
Reliable & Accurate32%
it's been reliable so far, accurate and fun to shoot
Great Value & Price26%
This .22 is well worth the price
Excellent Service23%
Second purchase from Guns. Com painless, secure, expedited service
Good Training Rifle15%
Great gun to train on. If you can run this then you can run AR
Colt Brand Quality13%
The gold standard in Ar's... been wanting one for along time
Common concerns
Quality Control Issues13%
what happened to the quality assurance people at Colt
Poor Fit & Finish9%
Very sharp edges in the trigger guard at the bottom of lower reciever
Difficult Maintenance8%
Cleaning the rifle is a nightmare
Missing Accessories6%
the gun lock they gave me had a key broke off in the lock
Frequently Asked Questions
Colt m4 Carbine for sale
Can a civilian own a Colt M4?
Civilians can own semi-automatic M4-style rifles like the Colt 6920, which are legal under federal law. Genuine military M4s with select-fire or full-auto capability require a pre-1986 registered transferable example, which is extremely rare and expensive. Semi-automatic variants are widely available, typically around $1,100.
Is a Colt M4 the same as an AR-15?
Not quite. The AR-15 is essentially the civilian, semi-auto version of the M4. Military M4s are select-fire with a shorter barrel and collapsible stock, while civilian versions are semi-auto only. Most civilian "M4-style" rifles are AR-15-pattern carbines with M4 aesthetics. We carry both styles on our marketplace.
Is the Colt M4 carbine any good?
The Colt M4 is a proven, mil-spec carbine with a strong reliability record and consistent accuracy. Prices range from $700–$1,600 depending on configuration. It's a capable choice for defense and range use, though competitors like BCM and Daniel Defense offer comparable quality at similar price points.
What is the difference between the M4 carbine and the M4A1?
Military M4s have a three-round burst fire mode, while M4A1s offer fully automatic fire. The M4A1 also features a heavier barrel and more consistent trigger. Civilians may only legally own semi-automatic versions, as fully automatic rifles require pre-1986 NFA registration.
Can a M4 carbine shoot 223?
Yes. Most civilian M4 carbines are chambered in 5.56 NATO, which safely fires .223 Remington ammunition. Check your barrel marking to confirm—it should say 5.56 NATO or 5.56x45mm. Shooting .223 in a 5.56 chamber is generally safe, though the reverse isn't recommended.
Is the Colt LE6920 an M4?
The LE6920 is a civilian/law enforcement semi-automatic carbine based on the M4 design. It shares the M4's profile and furniture but has a 16-inch barrel and lacks select-fire capability, so it is not a true military M4, which requires a shorter 14.5-inch barrel and full-auto or burst fire.
Is the Colt LE6920 discontinued?
Colt discontinued the LE-prefixed LE6920, but similar 6920 variants remain in production. Current marketplace data shows 18 LE6920 variants across 34 retailers, averaging around $1,100, with 10 variants in stock, indicating limited but available supply.
Which M4 model is the best?
"Best" depends on your priorities. Colt M4 Carbines offer proven reliability; Daniel Defense and FN models provide modern features. M4 variants typically cost around $1,100, ranging $704–$1,628. Compare models by intended use, barrel length, and features rather than brand alone.