United States Marine Corps

===Infantry weapons===
{{main|List of weapons of the United States Marine Corps}}
[[File:FORECON CQB trng -001-.jpg|thumb|Marines firing [[MEU(SOC) pistol]]s while [[garrison]]ed aboard a ship]]

The infantry weapon of the Marine Corps is the [[M27 Infantry Automatic Rifle|M27 IAR]]<ref>{{Cite web |title=PM Infantry Weapons undergoing largest modernization effort in decades |url=https://www.marines.mil/News/News-Display/Article/2191327/pm-infantry-weapons-undergoing-largest-modernization-effort-in-decades/https%3A%2F%2Fwww.marines.mil%2FNews%2FNews-Display%2FArticle%2F2191327%2Fpm-infantry-weapons-undergoing-largest-modernization-effort-in-decades%2F |access-date=2023-08-31 |website=United States Marine Corps Flagship |language=en-US}}</ref> service rifle. Most non-infantry marines have been equipped with the [[M4 carbine|M4 Carbine]]<ref>{{cite web |title= Top Marine Glad to Have M16A4 Standard |work= Kit Up! |publisher= Military.com |url= http://kitup.military.com/2010/03/top-marine-glad-to-have-m16a4-standard.html |date= 25 March 2010 |access-date= 27 April 2010 |archive-url= https://web.archive.org/web/20100328044510/http://kitup.military.com/2010/03/top-marine-glad-to-have-m16a4-standard.html |archive-date= 28 March 2010 |url-status=live |df= dmy-all}}</ref> or [[Colt 9mm SMG]].<ref>{{cite web |url=http://marines.mil/news/publications/Documents/NAVMC%20DIR%203500.90.pdf |title=NAVMC Directive 3500.90: Marine Corps Security Guard Battalion Training and Readiness Manual, (Short Title: MSGBN T&R Manual) |publisher=Headquarters Marine Corps |date=4 April 2006 |archive-url=https://web.archive.org/web/20090110131959/http://www.marines.mil/news/publications/Documents/NAVMC%20DIR%203500.90.pdf |archive-date=10 January 2009 |access-date=11 June 2014}}</ref> The standard [[Sidearm (weapon)|side arm]] is the [[SIG Sauer M17]]/M18<ref>{{Cite web |title=Marine Corps fields first new service pistol in 35 years |url=https://www.marines.mil/News/News-Display/Article/2358194/marine-corps-fields-first-new-service-pistol-in-35-years/https%3A%2F%2Fwww.marines.mil%2FNews%2FNews-Display%2FArticle%2F2358194%2Fmarine-corps-fields-first-new-service-pistol-in-35-years%2F |access-date=2023-08-31 |website=United States Marine Corps Flagship |language=en-US}}</ref> The M18 will replace all other pistols in the Marine Corps inventory, including the [[Beretta M9|M9]], M9A1, [[MEU(SOC) pistol|M45A1]] and M007, as the [[MEU(SOC) pistol|M45A1]] Close Quarter Battle Pistol (CQBP) in small numbers. [[Suppressive fire]] is provided by the, [[M249 light machine gun|M249 SAW]], and [[M240 machine gun|M240]] machine guns, at the squad and company levels respectively. In 2018, the M27 IAR was selected to be the standard issue rifle for all infantry squads.<ref>{{Cite web|last=Hodge Seck|first=Hope|date=5 January 2018|title=M27s and 'Head-to-Toe' Gear Overhaul on the Way for Marine Grunts|url=https://www.military.com/kitup/2018/01/05/m27s-and-head-toe-gear-overhaul-way-marine-grunts.html|url-status=live|archive-url=https://web.archive.org/web/20180107233105/https://www.military.com/kitup/2018/01/05/m27s-and-head-toe-gear-overhaul-way-marine-grunts.html|archive-date=7 January 2018|access-date=11 September 2021|website=Military.com}}</ref> In 2021, the Marine Corps committed to fielding [[Silencer (firearms)|suppressors]] to all its infantry units, making it the first branch of the U.S. military to adopt them for widespread use.<ref>{{Cite web|last=Hambling|first=David|date=5 January 2021|title=Stealth Fighters: Why U.S. Marine Corps Is Issuing Silencers To All Infantry Units|url=https://www.forbes.com/sites/davidhambling/2021/01/05/stealth-fighters-why-all-marine-infantry-are-getting-silencers/|url-status=live|archive-url=https://web.archive.org/web/20210128025625/https://www.forbes.com/sites/davidhambling/2021/01/05/stealth-fighters-why-all-marine-infantry-are-getting-silencers/|archive-date=28 January 2021|access-date=11 September 2021|website=Forbes}}</ref> 

The USMC infantry issued grenade launcher is the M320, which shoots a 40mm grenade,<ref>{{Cite web |title=Marines test grenade launcher during fielding event |url=https://www.marines.mil/News/News-Display/Article/2103936/marines-test-grenade-launcher-during-fielding-event/ |access-date=2024-02-09 |website=United States Marine Corps Flagship |language=en-US}}</ref> such as the M67 fragmentation grenade.<ref>{{Cite web |title=Service Members Throw M-67 Fragmentation Grenades |url=https://www.marines.mil/News/Marines-TV/videoid/297637/dvpTag/fragmentation/ |access-date=2024-02-09 |website= marines.mil |language=en-US}}</ref> Indirect fire is also provided by the [[M203 grenade launcher]] and the [[Milkor MGL|M32 grenade launcher]] in fireteams, [[M224 mortar|M224 60&nbsp;mm mortar]] in companies, and [[M252 mortar|M252 81&nbsp;mm mortar]] in battalions. The [[M2 Browning|M2 .50&nbsp;caliber heavy machine gun]] and [[Mk 19 grenade launcher|MK19 automatic grenade launcher (40&nbsp;mm)]] are available for use by dismounted infantry, though they are more commonly vehicle-mounted. Precision firepower is provided by the [[M40 rifle|M40 series]]<ref>{{cite web|title= M40A1 Sniper Rifle |work= USMC Fact File |publisher= U.S. Marine Corps|url= http://www.hqmc.usmc.mil/factfile.nsf/7e931335d515626a8525628100676e0c/03ae5c82962bc0f48525627b006d3126?OpenDocument |archive-url= https://web.archive.org/web/20070225004953/http://www.hqmc.usmc.mil/factfile.nsf/7e931335d515626a8525628100676e0c/03ae5c82962bc0f48525627b006d3126?OpenDocument |archive-date=25 February 2007}}</ref> and the [[Barrett M82|Barrett M107]], while [[Designated marksman|designated marksmen]] use the [[United States Marine Corps Designated Marksman Rifle|DMR]] variant of the M27, known as the M38, and the [[Squad Advanced Marksman Rifle|SAM-R]].{{cn|date=August 2023}}

[[File:AAV-australia.jpg|thumb|Marine [[Amphibious Assault Vehicle]]s emerge from the surf onto the sand of Freshwater Beach, Australia]]
The Marine Corps utilizes a variety of direct-fire rockets and missiles to provide infantry with an offensive and defensive anti-armor capability. The [[Mk 153 Shoulder-Launched Multipurpose Assault Weapon|SMAW]] and [[AT4]] are unguided rockets that can destroy armor and fixed defenses (e.g., bunkers) at ranges up to 500&nbsp;meters. The smaller and lighter [[M72 LAW]] can destroy targets at ranges up to 200 meters.<ref>John Antal "Packing a Punch: America's Man-Portable Antitank Weapons" page 88 Military Technology 3/2010 {{ISSN|0722-3226}}</ref><ref>{{cite web|url=https://www.fbo.gov/index?tab=core&s=opportunity&mode=form&id=6aea0552c87c7c9afb20167e1b193acc|title=Light Assault Weapon (LAW)|publisher=FBO.gov|access-date=20 January 2012|archive-url=https://web.archive.org/web/20120214055038/https://www.fbo.gov/index?tab=core&s=opportunity&mode=form&id=6aea0552c87c7c9afb20167e1b193acc|archive-date=14 February 2012|url-status=live}}</ref> The [[FGM-172 SRAW|Predator SRAW]], [[FGM-148 Javelin]] and [[BGM-71 TOW]] are [[anti-tank guided missile]]s. The Javelin can utilize top-attack profiles to avoid heavy frontal armor. The Predator is a short-range [[fire-and-forget]] weapon; the Javelin and TOW are heavier missiles effective past 2,000 meters that give infantry an offensive capability against armor.<ref>{{cite web |title= Tube Launched, Optically Tracked, Wire Guided (TOW) Missile Weapon System |work= USMC Fact File |publisher= U.S. Marine Corps |url= http://www.hqmc.usmc.mil/factfile.nsf/7e931335d515626a8525628100676e0c/4ba8f1e3958ca16d8525628100789abb?OpenDocument
 |archive-url= https://web.archive.org/web/20070211021126/http://www.hqmc.usmc.mil/factfile.nsf/7e931335d515626a8525628100676e0c/4ba8f1e3958ca16d8525628100789abb?OpenDocument
 |archive-date=11 February 2007}}</ref>