The Close Quarter Battle Receiver (CQBR) [5] is a replacement upper receiver for the M4A1 carbine developed by the US Navy. The CQBR features a 10.3 in (262 mm) length barrel …

近战机匣（Close Quarters Battle Receiver (CQBR)），美軍定名為Mk 18 Mod 0，亦被暱稱為近戰步槍。 CQBR是藉由更換 M4卡賓槍 的上 機匣 及短槍管改裝而成的近战步槍，槍管只有10.3 …

2025年2月4日 · 近战机匣（Close Quarters Battle Receiver (CQBR)），美军定名为Mk 18 Mod 0，亦被昵称为近战步枪。 CQBR是借由更换 M4卡宾枪 的上 机匣 及短枪管改装而成的近战 …

室内近战机匣（Close Quarters Battle Receiver，CQBR）是M4A1卡宾枪的一个可替换上机匣，其目的是为海军特种部队提供一种长度短重量轻的近战武器，但又能与SOPMOD M4的战术附件 …

cqbr是借由更换m4卡宾枪的上机匣及短枪管改装而成的近战步枪，枪管只有10.3寸（260毫米），可算是现代化版本的柯尔特突击型。 CQBR于2000年正式装备美国海军的特种作战部队。

The Close Quarter Battle Receiver (CQBR) is an alternative upper receiver for the M4A1 Carbine. It was developed by the US Navy. A M4 upper receiver with a shortened barrel of 10.5” inches …

这是2002年的照片，是在阿富汗保护卡尔扎伊的美国海军特种部队加强大队（DEVGRU，即海豹6队）的特种兵，也是较早曝光的一组CQBR的照片。 第二张照片上使用的是KAC的300米折 …

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 …

Our CQBR Block II is equipped with a 11.5″ Chrome-Lined, 5R, 4150V chrome moly vanadium barrel finished in a clean Mag Phos finish with an ASR suppressor ready muzzle. The TYPE-A …

The CQBR, designated Mk 18 Mod 0, is a variant of the M4 family of carbines. Designed for Close Quarters Battle (CQB), the CQBR is significantly shorter than its M4 / M4A1 cousins, with a …