Colt M4 Carbine CR6920 AR 15
Colt M4 Carbine AR 15
The M4/M4A1 5.56mm Carbine is a lightweight, gas operated, air cooled, magazine fed, selective rate, shoulder fired weapon with a collapsible stok. It is now the standard issue firearm for most units in the U.S. military.The M4 Carbine is a 5.56×45mm NATO, air-cooled, gas-operated, direct impingement, magazine-fed, select fire carbine. It has a 14.5 in barrel and a telescoping stock. It is essentially a lighter and shorter variant of the M16A2 assault rifle.
Equipped with a shorter barrel, collapsible stock and detachable carrying handle (with a built-in accessory rail) it provides soldiers operating in close quarters with improved handling and the capability to rapidly and accurately engage targets at extended range, day or night.
Colt M4 / AR-15 Carbine 223/5.56 16.1″ barrel CR6920
2020 law enforcement carbine, available to Law Enforcement and civilians
featuring 30 round P-Mag and Magpul MBUIS backup rear sight
Colt’s reliability performance and accuracy provide our Armed Forces the confidence required to accomplish any mission. Colt’s CR6920 series carbines share many features with their combat-proven brother the Colt M4A1.
The Colt CR6920 is the latest design, released in 2020, and identical in all ways to the LE6920, but now engraved as a Carbine, and features a chrome-lined barrel with a 1:7″ twist an adjustable-post front sight a rear Magpul Gen2 Back-Up Sight (MBUS) and a 30-round Magpul PMAG. This model has no carry handle. Lower is marked “Carbine”
In 2021, the majority of CR6920 rifles are using Cerro forged upper receiver (with the keyhole forge mark), but, unlike the 2020 models, which were Brass Aluminum (square forge mark), the uppers are not marked “M4” above the gas tube entry also lack the military CAGE Code engraving, although the barrels are the same military grade and CAGE code roll marked. This is due to Colt’s expansion and re-entry into the commercial market and using different forging companies to produce more rifles for the commercial market, after taking a year or so hyatis from September, 2019 to September, 2020 away from the commercial market. The Bolt is marked MPC, and the carrier is marked with a “C”, although we have seen carriers that were unmarked.
Solid Colt, a little different name, different forged uppers, but in all regards, this is the same weapon as the LE6920.
- Action: Gas Operated Semi-Auto
- Caliber: 223 Remington/5.56 NATO
- Barrel Length: 16.1″
- Capacity: 30+1
- Trigger: Standard
- Safety: Standard
- Upper Receiver: Cerro or Brass Aluminum forged upper with dry lube interior, 7075 aluminum with hard coat mil spec black anodizing, upper T-marks white painted
- OAL: 35.5″
- Weight: 6.95 lbs
- Stock: Black 4-Position Collapsible
- Metal Finish: Black
- Muzzle: A2 Flash Hider
- Receiver Material: 7075-T6 Aluminum
- Sights: A2 Front, Magpul Rear
- Barrel Description: Chrome-Lined Government profile, CMV steel and phosphate coated, per mil spec
- Twist: 1:7″
- Chamber: 5.56 NATO
- Purpose: Duty \ Range
- Finish: Black
- Overall Length: 32 to 35
- Features: Front Barrel Lug/ Ejection Port Cover
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A shortened variant of the M16A2 rifle, the M4 carbine provides the individual soldier operating in close quarters the capability to engage targets at extended range with accurate, lethal fire. The M4-series Carbine achieves over 80% commonality with the M16A2 Rifle and replaces all M3 .45 caliber submachine guns, and selected M9 pistols and M16 rifles.
The Army is pursuing a two-phase PIP to keep the M4 carbine inventory strong. Phase I upgrades the Army’s M4s to the Special Forces’ M4A1, while Phase II explores future improvements for the M4A1 Carbine to deliver enhanced reliability, durability, ergonomics and zero retention.
There are several benefits to upgrading M4s to M4A1s. Compared to the M4 , the M4A1 has full auto capability, a consistent trigger pull, and a slightly heavier barrel. The heavier barrel is more durable and has greater capacity to maintain accuracy and zero while withstanding the heat produced by high volumes of fire. New and upgraded M4A1s will also receive ambidextrous fire control.
Project Manager Soldier Weapons (PM SW) initiated Phase I by modifying its contract for the production of M4s to the M4A1. PM SW took delivery of 9,582 new M4A1s to complete this action. In support, TACOM Life Cycle Management Command will have fielded approximately 6,000 M4A1 Carbines to the 101st Airborne Division by September and plans to field an additional 3,000 M4A1s to another unit within the next several months.
PM SW also held a competition for the manufacture of 24,000 additional M4A1 Carbines. The Army awarded a contract in April to Remington Arms Co. The award came under protest and the Army is currently developing several courses of action to comply with the Government Accountability Office ruling and concerns regarding the competition. Once the contract dispute is resolved, other services will be able to place M4A1 and M4 orders against the contract as well.
The main thrust of Phase I is to upgrade existing M4s to the M4A1 configuration. The Army authorized the conversion of all M4s to the M4A1 standard with the upgrade currently budgeted for 300,000 M4s. The Army will complete the upgrades through the purchase of components that support modification work orders (MWO) that will be applied by Small Arms Readiness and Evaluation Teams (SARET).
The Army awarded six contracts for MWO kit components to date. Five of the awarded contracts went to small businesses. The awards reflect a success in the Army’s strategy to broaden the opportunities for small arms contractors and strengthen the diversity of the industrial base. PM SW anticipates awarding the final contract this summer for the barrel and bolt assembly. SARET is scheduled to begin upgrading M4s at a maximum rate of 8,000 a month beginning in late summer 2013.
PM SW completed its best value M4 carbine bolt and bolt carrier assembly competition in April 2012, though the competition was scheduled to conclude in summer 2013. More than six months of testing and evaluation determined that none of the 11 competing designs met the overall requirements outlined in the solicitation. The M4’s current bolt and bolt carrier assembly outperforms the competing designs in the areas of reliability, durability, and high-temp/low-temp tests. The Army saved nearly $2 million as a result of the early completion of the competition.