md又开始折腾M4A1 plus了

蛤蟆的翻译
http://lt.cjdby.net/forum.php?mo ... ;page=2#pid62083052
美国陆军发出了一张招标启事。而这张招标启事中就是为了美国陆军的“M4A1+”（官方名称就叫“M4A1-Plus”）升级计划搜寻合适的部件。
“M4A1+”计划是指在既有库存的M4A1上追加改进部件来提升整个步枪系统的整体性能。这次招标中也提到了，将会采用目前市面上既有的“非新开发组件”（意思是，不会有专门为这计划专门开发什么部件，而是直接取市场上的成熟产品）。
然后最重要的一点：“M4A1+”所有的组件必须要与任何一支既有“库存M4A1”进行“无缝衔接”（包括，但不限于：枪管、导气管、上机匣、枪机头、枪机框……等等等等……），而且装上之后不能对步枪的各方面性能有任何负面影响。除此之外，M4A1+的各部件也被要求必须与现有M4A1的修整工具、装夹工具零件通用，而不需要进行任何工具方面的改装（包括，但不局限于光学瞄准镜、照门准星、瞄准/指向装置、训练装置、枪带、护木盖……等等等等……）。
接下来，就当属大家最关心的内容了——“M4A1+”系统的各部件需求：
1.精度/散布
“M4A1+”平台的系统精度在其枪管寿命内，300米着弹点平均散布必须达到5英寸水平（最低要求）；或者在其枪管寿命内的300米着弹点极端散布有90%达到5英寸（理想要求）；又或者在其枪管寿命内的600米着弹点极端散布有90%达到10英寸（理想要求）。
上述要求中的散布是包括垂直和水平方向。而且仅限于“M4A1+”平台和特别指定弹药（没在启事中叙述），并且不安装任何枪管下挂武器系统时的测试结果。
2.改进加长型前护木导轨
“M4A1+”平台上的护木导轨必须要有MIL-STD-1913规格皮卡丁尼导轨型接口。而护木12点钟方向必须要有一条固定导轨，加上各方向复数个能安装皮卡丁尼导轨接口的地方。而此护木必须是浮置护木，然后枪管下挂武器或模块则通过“既有设计/重新设计”的接口来安装在护木上，而不是枪管。更详细的要求包括了：
长度：12英寸（±0.5英寸）
安装表面：必须要有足够、不同长度（3英寸、5英寸、7英寸……）、可拆卸的接口表明来安装美军现有标准配件（激光、照明、双脚架、枪带、握把、Grip-pod……）
保持归零：前护木上必须允许已归零的配件（绝大多指瞄具）在拆卸后再在安装时，有90%几率达到1 MOA以下的误差。
颜色：必须是一种中立（非黑色）、不显眼、不反光颜色的涂层。
耐磨损：护木涂层必须在各种极端环境和气候条件下，发挥出耐腐蚀、耐磨、耐摔特性，并面对各类核生化污染物及去污染物时也能体现同样的抗性。
低轮廊导气箍：改进加长型护木必须包括能与既有M4A1重枪管和导气管通用的低轮廊导气箍。
枪带挂点：护木上必须包括一个与1寸枪带通用的挂带点。
3.改进型后备机械瞄具
“M4A1+”将包括可拆卸的后备机瞄。这些机瞄在平时使用主瞄具时可以折叠/收起，当主瞄具出现问题是可以迅速翻起/展开使用。此后备机瞄必须能于200米和300米距离有效使用，并能调整风偏和高低。同时还要到600米距离还保有最低限度功能。
4.改进型枪口消焰器
“M4A1+”将包括一个新型枪口消焰器/制退器，其将比现有M4A1更有效地降低开火时（无论昼夜间）的枪口火焰特征，并减少对夜视仪的影响。而且不得使各方面性能降低于现有M4A1平台。
除此之外，枪口装置还能安装适合M200空包弹使用的空包弹适配器。然后即使误装实弹的情况下还得最大幅度降低损害。
5.改进型拉机柄
“M4A1+”平台上的拉机柄将由增大的操作表面，改善操作手感，并将利于士兵左右手操作。拉机柄必须与上述提到的所有配件相容。
6.重量
“M4A1+”平台在不安装任何配件的情况下空重不得多于8.0磅（3.6公斤）。
7.可靠性
当两者于相同环境条件下操作时，“M4A1+”的可靠性必须优于或等于现有M4A1。
8.改进型扳机组模块
此模块必须提供一个单级扳机，并能维持一致的扳机力（最好介于4.0~5.0磅之间），能让操作者选择半自动和全自动开火模式。必须能通过前线保养维修员直接安装/更换。
注：这个“改进型扳机组模块”将与上述提到的零部件分开进行采购。
（完）

http://www.military.com/daily-ne ... html?ESRC=army-a.nl
The U.S. Army is considering several upgrades to the M4A1 Carbine that could improve its accuracy and performance and change the weapon's appearance.

Army weapons and contracting officials recently launched a market survey to see what the small-arms industry has to offer as far as better rails, triggers, charging handles and sights for the M4A1.

"The government is seeking to procure M4A1-Plus (abbreviated as M4A1+) components as non-development items ... for improvements to the M4A1 Carbine," according to the March 13 document posted on FedBizOpps.gov. "It is anticipated that the M4A1+ components will be evaluated as a system. The system must then install on/interface with stock M4A1 Carbines."

The Army decided to replace the standard M4 with the M4A1 in 2013 after the service abandoned a five-year effort to replace the M4 with a brand-new carbine.

The M4A1 is the special operations version of the M4 that's been in use for more than a decade. It features a heavier barrel and a full-auto trigger. The Army's decision to dump the current three-round burst trigger resulted in a more consistent trigger pull and better accuracy, weapons officials said.

The selection of the M4A1 came out of the service's M4 Product Improvement Program, which looked at improvements such as an improved rail, trigger pull, bolt and bolt-carrier group.

The M4A1+ effort will look for add-on components that will "seamlessly integrate with the current M4A1 Carbine ... without negatively impacting or affecting the performance or operation of the M4A1 weapon," the document states.

All M4A1+ components will need to be compatible with current M4A1 ancillary equipment such as optics, aiming/pointing devices, training devices, slings and rail covers.

One of the upgrades is an improved extended forward rail that will "provide for a hand guard allowing for a free-floated barrel" for improved accuracy, according to the document.

The improved rail will also have to include a low-profile gas block that could spell the end of the M16/M4 design's traditional gas block and triangular fixed front sight.

The effort also calls for new, removable front and rear back-up iron sights that attach to the rails and "stow down/away to reduce interference with the mounted primary sights and flip up to enable soldiers to engage targets out to 300 meters," according to the document.

The sight apertures should provide for both near threat to 200 meters to longer, 300-meter engagements and allow for windage and elevation adjustments out to 600 meters without degrading threshold capabilities.

The improved rail system for the M4A1+ will also feature a Coyote tan or "neutral (non-black) color" for "reduced visual detection," the document states.

"The color range will be Coyote 498 not lighter than Light Coyote 481," it states.

The M4A1+ would also feature a more effective flash suppressor/muzzle brake brake "designed to reduce the day and night firing signature and night vision device blooming effect of the weapon to be less than the current carbine without loss in system performance," according to the document.

An improved charging handle would provide shooters with an enhanced grasping surface area with an "extended latch capability for improved hand/finger-grasping access and enhanced operating leverage/operation for both left- and right-handed shooters." the document states.

The M4A1+ would also include an enhanced, single-stage trigger module "free of creep with consistent trigger pull weight within the range of 4.0 to 5.0 pounds," according to the document.

Companies interested in participating have until April 3 to respond.


蛤蟆的翻译
http://lt.cjdby.net/forum.php?mo ... ;page=2#pid62083052
美国陆军发出了一张招标启事。而这张招标启事中就是为了美国陆军的“M4A1+”（官方名称就叫“M4A1-Plus”）升级计划搜寻合适的部件。
“M4A1+”计划是指在既有库存的M4A1上追加改进部件来提升整个步枪系统的整体性能。这次招标中也提到了，将会采用目前市面上既有的“非新开发组件”（意思是，不会有专门为这计划专门开发什么部件，而是直接取市场上的成熟产品）。
然后最重要的一点：“M4A1+”所有的组件必须要与任何一支既有“库存M4A1”进行“无缝衔接”（包括，但不限于：枪管、导气管、上机匣、枪机头、枪机框……等等等等……），而且装上之后不能对步枪的各方面性能有任何负面影响。除此之外，M4A1+的各部件也被要求必须与现有M4A1的修整工具、装夹工具零件通用，而不需要进行任何工具方面的改装（包括，但不局限于光学瞄准镜、照门准星、瞄准/指向装置、训练装置、枪带、护木盖……等等等等……）。
接下来，就当属大家最关心的内容了——“M4A1+”系统的各部件需求：
1.精度/散布
“M4A1+”平台的系统精度在其枪管寿命内，300米着弹点平均散布必须达到5英寸水平（最低要求）；或者在其枪管寿命内的300米着弹点极端散布有90%达到5英寸（理想要求）；又或者在其枪管寿命内的600米着弹点极端散布有90%达到10英寸（理想要求）。
上述要求中的散布是包括垂直和水平方向。而且仅限于“M4A1+”平台和特别指定弹药（没在启事中叙述），并且不安装任何枪管下挂武器系统时的测试结果。
2.改进加长型前护木导轨
“M4A1+”平台上的护木导轨必须要有MIL-STD-1913规格皮卡丁尼导轨型接口。而护木12点钟方向必须要有一条固定导轨，加上各方向复数个能安装皮卡丁尼导轨接口的地方。而此护木必须是浮置护木，然后枪管下挂武器或模块则通过“既有设计/重新设计”的接口来安装在护木上，而不是枪管。更详细的要求包括了：
长度：12英寸（±0.5英寸）
安装表面：必须要有足够、不同长度（3英寸、5英寸、7英寸……）、可拆卸的接口表明来安装美军现有标准配件（激光、照明、双脚架、枪带、握把、Grip-pod……）
保持归零：前护木上必须允许已归零的配件（绝大多指瞄具）在拆卸后再在安装时，有90%几率达到1 MOA以下的误差。
颜色：必须是一种中立（非黑色）、不显眼、不反光颜色的涂层。
耐磨损：护木涂层必须在各种极端环境和气候条件下，发挥出耐腐蚀、耐磨、耐摔特性，并面对各类核生化污染物及去污染物时也能体现同样的抗性。
低轮廊导气箍：改进加长型护木必须包括能与既有M4A1重枪管和导气管通用的低轮廊导气箍。
枪带挂点：护木上必须包括一个与1寸枪带通用的挂带点。
3.改进型后备机械瞄具
“M4A1+”将包括可拆卸的后备机瞄。这些机瞄在平时使用主瞄具时可以折叠/收起，当主瞄具出现问题是可以迅速翻起/展开使用。此后备机瞄必须能于200米和300米距离有效使用，并能调整风偏和高低。同时还要到600米距离还保有最低限度功能。
4.改进型枪口消焰器
“M4A1+”将包括一个新型枪口消焰器/制退器，其将比现有M4A1更有效地降低开火时（无论昼夜间）的枪口火焰特征，并减少对夜视仪的影响。而且不得使各方面性能降低于现有M4A1平台。
除此之外，枪口装置还能安装适合M200空包弹使用的空包弹适配器。然后即使误装实弹的情况下还得最大幅度降低损害。
5.改进型拉机柄
“M4A1+”平台上的拉机柄将由增大的操作表面，改善操作手感，并将利于士兵左右手操作。拉机柄必须与上述提到的所有配件相容。
6.重量
“M4A1+”平台在不安装任何配件的情况下空重不得多于8.0磅（3.6公斤）。
7.可靠性
当两者于相同环境条件下操作时，“M4A1+”的可靠性必须优于或等于现有M4A1。
8.改进型扳机组模块
此模块必须提供一个单级扳机，并能维持一致的扳机力（最好介于4.0~5.0磅之间），能让操作者选择半自动和全自动开火模式。必须能通过前线保养维修员直接安装/更换。
注：这个“改进型扳机组模块”将与上述提到的零部件分开进行采购。
（完）

http://www.military.com/daily-ne ... html?ESRC=army-a.nl
The U.S. Army is considering several upgrades to the M4A1 Carbine that could improve its accuracy and performance and change the weapon's appearance.

Army weapons and contracting officials recently launched a market survey to see what the small-arms industry has to offer as far as better rails, triggers, charging handles and sights for the M4A1.

"The government is seeking to procure M4A1-Plus (abbreviated as M4A1+) components as non-development items ... for improvements to the M4A1 Carbine," according to the March 13 document posted on FedBizOpps.gov. "It is anticipated that the M4A1+ components will be evaluated as a system. The system must then install on/interface with stock M4A1 Carbines."

The Army decided to replace the standard M4 with the M4A1 in 2013 after the service abandoned a five-year effort to replace the M4 with a brand-new carbine.

The M4A1 is the special operations version of the M4 that's been in use for more than a decade. It features a heavier barrel and a full-auto trigger. The Army's decision to dump the current three-round burst trigger resulted in a more consistent trigger pull and better accuracy, weapons officials said.

The selection of the M4A1 came out of the service's M4 Product Improvement Program, which looked at improvements such as an improved rail, trigger pull, bolt and bolt-carrier group.

The M4A1+ effort will look for add-on components that will "seamlessly integrate with the current M4A1 Carbine ... without negatively impacting or affecting the performance or operation of the M4A1 weapon," the document states.

All M4A1+ components will need to be compatible with current M4A1 ancillary equipment such as optics, aiming/pointing devices, training devices, slings and rail covers.

One of the upgrades is an improved extended forward rail that will "provide for a hand guard allowing for a free-floated barrel" for improved accuracy, according to the document.

The improved rail will also have to include a low-profile gas block that could spell the end of the M16/M4 design's traditional gas block and triangular fixed front sight.

The effort also calls for new, removable front and rear back-up iron sights that attach to the rails and "stow down/away to reduce interference with the mounted primary sights and flip up to enable soldiers to engage targets out to 300 meters," according to the document.

The sight apertures should provide for both near threat to 200 meters to longer, 300-meter engagements and allow for windage and elevation adjustments out to 600 meters without degrading threshold capabilities.

The improved rail system for the M4A1+ will also feature a Coyote tan or "neutral (non-black) color" for "reduced visual detection," the document states.

"The color range will be Coyote 498 not lighter than Light Coyote 481," it states.

The M4A1+ would also feature a more effective flash suppressor/muzzle brake brake "designed to reduce the day and night firing signature and night vision device blooming effect of the weapon to be less than the current carbine without loss in system performance," according to the document.

An improved charging handle would provide shooters with an enhanced grasping surface area with an "extended latch capability for improved hand/finger-grasping access and enhanced operating leverage/operation for both left- and right-handed shooters." the document states.

The M4A1+ would also include an enhanced, single-stage trigger module "free of creep with consistent trigger pull weight within the range of 4.0 to 5.0 pounds," according to the document.

Companies interested in participating have until April 3 to respond.