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<title>Modular weapon system</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Modular weapon system</span></span>

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<p>A <b>modular weapon system (MWS)</b> is any <a href="Weapon" title="Weapon">weapon</a> equipment which has removable core components (or "<a href="Modular_design" title="Modular design">modules</a>") that can be reconfigured/interchanged to give the weapon different capabilities to adapt to various applications. <a href="Modularity" title="Modularity">Modularity</a> can provide several advantages to military organizations, such as the versatility of allowing units to quickly tailor their weapons to best suit the immediate <a href="Military_tactics" title="Military tactics">tactical</a> needs, to quickly repair/exchange malfunctioned components, and to reduce overall <a href="Military_logistics" title="Military logistics">logistical</a> burdens and costs. However, it also make the legal tracking and technical categorization of a weapon more complicated as it can now be easily converted into a diverse variety of different forms.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

</p><p>For example, the <a href="Stoner_63" title="Stoner 63">Stoner 63</a> is a <a href="5.56%C3%9745mm_NATO" title="5.56×45mm NATO">5.56×45mm NATO</a>-caliber modular <a href="Small_arm" class="mw-redirect" title="Small arm">small arm</a> system using a variety of modular components, which can be configured as a <a href="Rifle" title="Rifle">rifle</a>, a <a href="Carbine" title="Carbine">carbine</a>, a top-fed <a href="Light_machine_gun" title="Light machine gun">light machine gun</a>, a <a href="Belt-fed" class="mw-redirect" title="Belt-fed">belt-fed</a> <a href="Squad_automatic_weapon" title="Squad automatic weapon">squad automatic weapon</a>, or a vehicle mounted weapon.

</p><p>A <b>modular firearm</b> can also be useful for hunters, which then easily can change to a different chambering or barrel length when hunting different species.

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<div class="mw-heading mw-heading2"><h2 id="Quick-change_barrel_system">Quick-change barrel system</h2></div>

<p>Another example of a modular firearm system is the increasingly popular quick barrel change systems<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>, which is found on some new rifles like for example the <a href="Blaser_R8" title="Blaser R8">Blaser R8</a>, <a href="R%C3%B6%C3%9Fler_(firearms_manufacturer)" title="Rößler (firearms manufacturer)">Roessler Titan</a> and <a href="SIG_Sauer_200_STR" title="SIG Sauer 200 STR">SIG Sauer 200 STR</a>. These systems simplify the replacement of worn barrels or caliber changes, since they often only require the use of a <a href="Hex_key" title="Hex key">hex key</a>, thus eliminating the need for special tools and custom fitting by a gunsmith.

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<ul><li><a href="Glossary_of_firearms_terms" title="Glossary of firearms terms">Glossary of firearms terms</a></li>

<li><a href="Action_threads" class="mw-redirect" title="Action threads">Action threads</a></li>

<li><a href="Press_fit_barrel" class="mw-redirect" title="Press fit barrel">Press fit barrel</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFSmall_Arms_Survey2012" class="citation book cs1">Small Arms Survey (30 August 2012). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=hY3s5nHUM24C&pg=PA246"><i>Small Arms Survey 2012: Moving Targets</i></a>. Cambridge University Press. pp. 246–. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-521-14687-6</bdi>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://patents.google.com/patent/US6606812B1/en">https://patents.google.com/patent/US6606812B1/en</a></span>

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</style><div id="Firearm_accessories_mounting_standards339" style="font-size:114%;margin:0 4em"><a href="Firearm" title="Firearm">Firearm</a> accessories mounting standards</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Gun_barrel" title="Gun barrel">Barrels</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Action_threads" class="mw-redirect" title="Action threads">Action threads</a></li>

<li><a href="Press_fit_barrel" class="mw-redirect" title="Press fit barrel">Press fit barrel</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Receiver_(firearms)" title="Receiver (firearms)">Receivers</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Weaver_rail_mount" title="Weaver rail mount">Weaver</a></li>

<li><a href="Picatinny_rail" title="Picatinny rail">Picatinny</a></li>

<li><a href="Dovetail_rail" title="Dovetail rail">Dovetail rail</a></li>

<li><a href="Warsaw_Pact_rail" class="mw-redirect" title="Warsaw Pact rail">Warsaw Pact rail</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Telescopic_sight" title="Telescopic sight">Scopes</a> and <a href="Scope_mount" title="Scope mount">scope mounts</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Ring_mounts" class="mw-redirect" title="Ring mounts">Ring mounts</a> (1 inch, 30 mm, 34 mm, etc.)</li>

<li><a href="Zeiss_rail#History" title="Zeiss rail">Traditional prism rail</a></li>

<li><a href="Zeiss_rail" title="Zeiss rail">Zeiss rail</a></li>

<li><a href="Zeiss_rail#Competing_standards" title="Zeiss rail">Swarovski rail</a></li>

<li><a href="Zeiss_rail#Competing_standards" title="Zeiss rail">S&B Convex</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Compact and non-magnifying sights <br>(<a href="Red_dot_sight" title="Red dot sight">reflex</a>, <a href="Holographic_weapon_sight" title="Holographic weapon sight">holographic</a> or <a href="Prism_sight" title="Prism sight">prism</a>)</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Scope_mount#Mounts_for_compact_sights" title="Scope mount">Docter</a></li>

<li><a href="Scope_mount#Mounts_for_compact_sights" title="Scope mount">Shield/Leupold</a></li>

<li><a href="Scope_mount#Mounts_for_compact_sights" title="Scope mount">CompM4</a></li>

<li><a href="Scope_mount#Mounts_for_compact_sights" title="Scope mount">Micro</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Handguard" class="mw-redirect" title="Handguard">Handguard</a> accessories</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Weaver_rail_mount" title="Weaver rail mount">Weaver</a></li>

<li><a href="Picatinny_rail" title="Picatinny rail">Picatinny</a></li>

<li><a href="KeyMod" title="KeyMod">KeyMod</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Bipod" title="Bipod">Bipods</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Sling_swivel_stud" class="mw-redirect" title="Sling swivel stud">Swivel stud</a></li>

<li><a href="Picatinny_rail" title="Picatinny rail">Picatinny</a></li>

<li><a href="Versa_Pod" class="mw-redirect" title="Versa Pod">Versa Pod</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Sling_(firearms)" title="Sling (firearms)">Slings</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Sling_swivel_stud" class="mw-redirect" title="Sling swivel stud">Swivel stud</a></li>

<li><a href="Snap_hook_sling_mount" class="mw-redirect" title="Snap hook sling mount">Snap hooks</a></li>

<li><a href="Quick_Detach_sling_mount" class="mw-redirect" title="Quick Detach sling mount">QD/ Flush cup</a></li></ul>

</div></td></tr></tbody></table></div>

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