The Special Purpose Individual Weapon (SPIW) was a long-running United States Army program to develop, in part, a flechette-firing "rifle", though other concepts were also involved.

Mar 2, 2015 · Right side of the Phase I SPIW from Springfield Armory with the full complement of equipment for firing 60 rounds of point-target XM144 flechettes plus 3 rounds of area-fire …

The H&R SPIW is a prototype assault rifle designed for the Special Purpose Individual Weapon program by Harrington & Richardson. The SPIW program had four contenders with designs for …

SPIW project ammunition: 5.6×44 XM216 (flechette, sectioned and complete rounds), 5.6×53 XM110, 5.6×57 XM645, and 5.56×45 NATO for scale. The “Special Purpose Individual …

The 5.6×44mm XM144 was an experimental military small arms cartridge developed by Frankford Arsenal as part of the SPIW project. It was developed as a competitor to the AAI-designed …

Dec 1, 2014 · Thus there soon existed a new, shorter, conventionally-primed version of the single flechette cartridge, called the XM144. Design studies for two types of flechette-firing shoulder …

The SPIW used the XM144, a 5.6×44mm caliber flechette round designed by Irwin R. Barr. The 1965 model and later used the XM216, also a 5.6×44mm caliber flechette round. The grenade …

SPIW的箭弹，其实在英文资料中有时被称为“箭弹（Arrow）”，但大多时候则被称为“飞镖弹（ Flechette ）”，而在国内通常习惯称为箭弹。 SPIW 项目中的箭弹主要有 AAI 公司生产的 …

Jul 31, 2013 · Springfield's 1964 SPIW bullpup prototype used a very unusual tandem 60-round box magazine, in conjunction with XM144 flechette cartridges.

Mar 14, 2010 · The Special Purpose Individual Weapon (SPIW) was conceived as a hand held weapon firing both "point target" ammunition (single flechettes) plus "area target" grenades all …