2018年5月14日 · It’s in this role that they evaluated the mid-length gas system for United States Army Special Operations Command M4A1 carbines. Gas System History. The M16 Rifle and …

2025年3月25日 · Royal Canadian Navy (RCN) sailors and members of the United States Coast Guard (USCG) aboard His Majesty’s Canadian Ship (HMCS) Harry DeWolf conduct …

I've been crunching the data compiled from the reference pictures of the NSW M4A1 Block II DMRs and reformatting it and breaking out new blocks of data since my post about it earlier …

2023年11月15日 · From the very first prototypes to the Block II M4A1s on frontline service in USSOCOM, we embrace all the specialized variants of the Black Rifle, even those fighting …

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 …

2020年2月14日 · At around this time, the specification was changed for the barrel length. The new specification called for a 10.3 inch barrel instead of 10.5 inches. It was found that 10.3 inches …

Upper Receiver: Colt AF or Keyhole (potentially others) Barrel: Lilja 15.1” 1/7 Twist Stainless Steel carbine (?) gas system w/ Ops Inc Profile, Lilja 16” 1/7 Twist Stainless Steel carbine gas …

A subreddit focusing on cloning military M16 and M4 Carbine variants, built on civilian AR15 or registered M16 receivers. From the very first prototypes to the Block II M4A1s on frontline …

2018年1月7日 · United States Army Special Operations Command (USASOC) Upper Receiver Group, Improved (URG-I) and Naval Special Warfare (NSW) Upper Receiver Group, Improved …

2021年9月8日 · The NSW Rattler receiver is an M4A1 mod, meaning it doesn’t come with a serialized lower and fire control, it instead drops onto an in inventory M4A1. The upper itself is …