A selective-fire, semi-, and full-auto 5.56x45mm rifle using a short-stroke gas piston, the FN® MK 16 CQC is configured for close quarters combat (CQC), and can be quickly changed at operator level for tactical and long-range engagements.

U.S. Air Force Special Tactics Officer with the SCAR-L (Mk 16) in Afghanistan. The SCAR is manufactured in two main versions; the SCAR-L ("Light") and SCAR-H ("Heavy"). The SCAR-L fires 5.56×45mm NATO rounds from STANAG (M16) magazines. The SCAR-H fires the more powerful 7.62×51mm NATO cartridge from proprietary 20-round magazines.

由於 M16突擊步槍 及 M4卡賓槍 不能完全勝任所有任務， 美國海軍水面作戰中心 （英语：Naval Surface Warfare Center） 以更換特种用途机匣及短槍管的方式設計出CQBR，其改裝套件其實是M4卡賓槍 SOPMOD Block II 的其中一個项目。 目前該中心已把CQBR抽出 SOPMOD 作獨立發展，類似 Mk 12 SPR。 完全改裝的CQBR定名為 Mk 18 Mod 0。 Mk 18 Mod 1 為改用 丹尼爾防務公司 （英语：Daniel Defense） （Daniel Defense） 皮卡汀尼導軌 護木 的版本，同時換裝了不 …

Commando 553就是标准短突了，和MK16一样的高射速，停止力略高(打无甲的左轮、MAC10光头效率平均两枪左右)，穿甲莫名较低，精准度拉满，跟MK16就不是一个维度的，换弹速度、举枪速度相比MK16较低，枪管貌似也更长一点，但真差不了多少，够用

The purpose of the CQBR is to provide operators with a weapon of submachine gun size, but firing an intermediate cartridge, for scenarios such as VIP protection, urban warfare, and other close quarters battle (CQB) situations. The CQBR is designed to provide improvement over previous AR-15/M16-type weapons in this category. The CQBR is usually ...

Mk 16 Mod 0預計要替換 M4A1 、 Mk 18近戰步槍 （CQBR）和 Mk 12 SPR，同時於SOCOM服役，Mk 17 Mod 0預計替換 M14 和 Mk 11 狙擊步槍。 SCAR的特徵為從頭到尾不間斷的戰術導軌在鋁製外殼的正上方排開，兩條可拆式導軌在側面，下方還可掛任何MIL-STD-1913標準的相容配件，握把部分可和M16互換，彈匣和彈匣釋放鈕都亦與M16相同，前準星可以折下，不會擋到瞄準鏡或是光學瞄準器，此槍使用的「Tappet式」的氣體閉鎖系統類似早期 M1卡宾枪，反而不類似 …

Chambered for the high-velocity 5.56x45mm NATO, the selective-fire FN SCAR® 16’s innovative gas-operated, short-stroke piston system reduces fouling for greater reliability. The FN SCAR® 16 system features three user-interchangeable, free-floating cold hammer-forged MIL-SPEC barrels with hard-chromed bores and three-prong flash suppressors.

2010年11月27日 · 5.56x45 nato口径的叫mk.16，也叫scar-l，而7.62x51 nato口径的叫mk.17，也叫scar-h。每种口径又分为cqb（短管）、std（标准枪管）和lb（长枪管）三种型号，5.56mm还有iar的带两脚架重枪管型，7.62还有mk.17 ssr狙击型，也就是说scar一共有8种基本型号。mk.16是小口径型号的名称。

New aeg electric rifle with polymer body and GEISSELE style rail (MK16 project USASOC-URG) unique serial number series is applied to assure reliability and assistance new CORE 8mm meca box with ESA2 patented QD spring release (no need body to me removed) 9.5 inches CNC M-LOK aluminum handguard with 10.5 inches outer barrel

The VFC URGI is a long away fully built rifle based on the "Upper Receiver Group Improved" initiative launched by the United States military to refresh rifles used by some of its forces previously using other similar guns. The receiver group features updated MLOK handguards, charging handles, suppressor mountable flash hider, and barrel.