Mk22 Mod 0 Hush Puppy - Revision history

Skizmophonic at 06:06, 25 February 2026

2026-02-25T06:06:07Z

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	~~Based~~ on the [[Smith & Wesson Model 39]]~~, This version featured a~~ [[~~silencer~~]] ~~and~~ raised sights.		The Mk 22 Mod 0 “Hush Puppy” is a U.S. Navy suppressed pistol based on the [[Smith & Wesson Model 39]] and chambered in [[9×19mm Parabellum]]. It was built as a specialized stealth sidearm, combining a detachable suppressor with raised sights and a slide-lock feature to reduce the mechanical noise of cycling. The Mk 22 is best known for Vietnam-era Naval Special Warfare use as a quiet, close-range option for sentries and guard dogs.
	=HISTORY=		==HISTORY==
			The Mk 22 Mod 0 was developed in the 1960s as Naval Special Warfare looked for a suppressed handgun that was more capable than .22-caliber “silent” pistols but still compact enough for clandestine carry. Using the Smith & Wesson Model 39 as a base, the Navy created a modified package centered on a threaded barrel for the Mk 3 Mod 0 suppressor, plus taller sights so the suppressor would not block the sight picture. A defining feature of the system was a slide-lock device that could keep the slide from cycling, sacrificing rapid follow-up shots in exchange for reducing the clack of the action.

	During the Vietnam War, ~~Special Operations forces recognized~~ the ~~importance of suppressed weapons~~ for ~~stealth~~ operations. ~~Elite units like the Green Berets and Navy SEALs were prominent, forming the Joint Combat group MACV-SOG. Among their innovations~~ was ~~the~~ Mk ~~22 MOD~~ 0, ~~dubbed~~ the ~~Hush Puppy~~, ~~designed for silent dispatching~~ of ~~enemy threats, including guard dogs~~ and ~~sentries~~.		During the [[Vietnam War]], the Mk 22 Mod 0 was issued in limited numbers for missions where noise discipline mattered, and it is most often associated with SEAL operations. It was paired with specialized subsonic ammunition (Mk 144 Mod 0) using a 158-grain green-tipped FMJ bullet, and the suppressor system used replaceable components that required periodic servicing to maintain effectiveness. While never a general-issue sidearm, the “Hush Puppy” became one of the best-known suppressed handgun systems of the era and influenced later thinking about purpose-built suppressed pistols.

	~~Developed by the~~ Naval ~~Special Warfare Lab, the Mk 22 MOD 0 departed from conventional designs, featuring a short recoil-operated mechanism with a locked breech~~ and ~~a threaded barrel for a suppressor. Its enhanced features included suppressor height sights and a detachable metal stock for improved accuracy.~~		===Sources===
			* [https://www.history.navy.mil/content/history/museums/hrnm/explore/VietnamExhibitPage/IntelligenceSpecialOperations/SEALsv4/ExploreArtifactsV4.html Naval History and Heritage Command (Hampton Roads Naval Museum) – SEAL artifacts page mentioning the “hush puppy” pistol]
	~~Though exact field usage is scarce, reports suggest satisfaction with its performance, with some remaining in~~ SEAL ~~team service beyond~~ the ~~Vietnam era~~. ~~Approximately 120 were produced, with only two exiting military possession~~. ~~The pistol~~'~~s slide lock, which kept the slide closed after firing, contributed to its suppression capabilities, albeit rendering it a single-shot design. Paired with the Mark~~ 3 suppressor ~~and special subsonic ammo, the~~ Mk ~~22 MOD~~ 0 ~~offered a remarkably quiet option for clandestine operations, despite limitations with wipe-based suppressors needing periodic replacement.~~		* [https://www.scribd.com/doc/125508293/NAVSEA-SW010-AD-GTP-010-TM-Small-Arms-Special-Warfare-Ammunition NAVSEA SW010-AD-GTP-010 – ''Small Arms and Special Warfare Ammunition'' (includes Mk 22 Mod 0 / Mk 3 suppressor / Mk 144 Mod 0 details)]
	~~<br>~~[https://en.~~wikipedia.org~~/~~wiki~~/~~Smith_%26_Wesson_Model_39 SOURCE~~]		* [https://smallarmsreview.com/the-hushpuppy/ Small Arms Review – “The Hushpuppy” (Mark 22 Mod 0 and Mark 3 suppressor overview)]
	~~<br>~~[https://~~silencerco~~.com/~~blog~~/~~mk22-~~hush-puppy ~~SOURCE~~]		* [https://athlonoutdoors.com/article/hush-puppy-seal-silencer-system/ Athlon Outdoors – “Hush Puppy: The Vietnam-Era Navy SEAL Silencer System”]
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			<div class="mw-collapsible" style="border:1px solid #ccc; padding:5px; width:100%;">
	<gallery mode="packed" heights="400px">		<div style="text-align:center; font-weight:bold;">Real-Life Photos</div>
	File:Mk22-Hush-Puppy.jpg		<div class="mw-collapsible-content" style="margin-top:0.5em;">
	File:DSCN6340.JPG		<gallery mode="packed" heights="400px">
	File:Mk22-Hush-Puppy-Hampton-roads-naval-museum.jpg		File:Mk22-Hush-Puppy.jpg\|Mk 22 Mod 0 “Hush Puppy” with suppressor fitted.
	File:Mk-22-mod-0-US-Navy.jpg		File:DSCN6340.JPG\|Mk 22 Mod 0 on display.
	File:Mk-22-with-silencer-US-Navy.jpg		File:Mk22-Hush-Puppy-Hampton-roads-naval-museum.jpg\|Mk 22 Mod 0 at the Hampton Roads Naval Museum.
	File:Mk22Stock.jpg		File:Mk-22-mod-0-US-Navy.jpg\|U.S. Navy Mk 22 Mod 0 pistol.
	File:Mk22Stock2.jpg		File:Mk-22-with-silencer-US-Navy.jpg\|Mk 22 Mod 0 with Mk 3 suppressor.
	File:Mk22-hushpuppy-small-arms-of-the-world.jpg		File:Mk22Stock.jpg\|Detachable stock used with the Mk 22 system.
	</gallery>		File:Mk22Stock2.jpg\|Mk 22 Mod 0 with stock attached.
			File:Mk22-hushpuppy-small-arms-of-the-world.jpg\|Mk 22 Mod 0 pictured in reference material.
			</gallery>
			</div>
			</div>

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			<div class="mw-collapsible" style="border:1px solid #ccc; padding:5px; width:100%;">
	{{#~~evt~~:		<div style="text-align:center; font-weight:bold;">Videos</div>
	~~service~~=~~youtube~~		<div class="mw-collapsible-content" style="margin-top:0.5em;">
	~~\|id~~=~~https~~:~~//www~~.youtube~~.com/watch?v=~~EFvhQGlfl3I		{{#ev:youtube\|EFvhQGlfl3I}}
	~~\|alignment=inline~~		{{#ev:youtube\|5ElNsN1k_vc}}
	~~\|description=~~		</div>
	}}		</div>

	{{#~~evt~~:
	~~service=~~youtube
	\|~~id=https://www.youtube.com/watch?v=~~5ElNsN1k_vc
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Skizmophonic at 02:00, 14 September 2025

2025-09-14T02:00:04Z

← Older revision		Revision as of 02:00, 14 September 2025
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	! rowspan=2 \| [[Ammo]]		! rowspan=2 \| [[Ammo]]
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	\|[[File:Flag_us_new.png\|50px]]<br><strong>[[US]]</strong>\|\| [[File:Hush Puppy.png\|512px]]<br><b>[[Mk22 Mod 0 Hush Puppy]]</b> \|\| [[File:Weapon mk22 mod0.png\|512px]] \|\| [[File:Class_sniper.png\|50px]] <b>[[Sniper]]</b><br> \|\| 8[[+1]] / 16		\|[[File:Flag_us_new.png\|50px]]<br><strong>[[US]]</strong>\|\| [[File:Hush Puppy.png\|512px]]<br><b>[[Mk22 Mod 0 Hush Puppy]]</b> \|\| [[File:Weapon mk22 mod0.png\|512px]] \|\| [[File:Class_sniper.png\|50px]] <b>[[Sniper]]</b><br> \|\| 8[[+1]] / 24
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Skizmophonic at 07:56, 5 November 2024

2024-11-05T07:56:54Z

← Older revision		Revision as of 07:56, 5 November 2024
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			[[Category:Weapons]]
			[[Category:Weapons of Vietnam]]
	{\| class="wikitable sortable" style="margin:auto;text-align: center;width:90%"		{\| class="wikitable sortable" style="margin:auto;text-align: center;width:90%"
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Skizmophonic at 18:58, 2 November 2024

2024-11-02T18:58:12Z

← Older revision		Revision as of 18:58, 2 November 2024
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	! rolspan=2 \| [[Weight]]		! rolspan=2 \| [[Weight]]
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	\|[[Mk22 Mod 0]]\|\|[[Pistol]]\|\|Semi\|\|50 RPM\|\|6.15° & 2.15° [[ADS]]\|\|0.72\|\|350 m/s\|\|7.5 g (115.7 gr)\|\|0.752 kg (1.658 lbs)		\|[[Mk22 Mod 0]]\|\|[[Suppressed]]<br>[[Pistol]]\|\|Semi\|\|50 RPM\|\|6.15° & 2.15° [[ADS]]\|\|0.72\|\|350 m/s\|\|7.5 g (115.7 gr)\|\|0.752 kg (1.658 lbs)
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Skizmophonic at 01:44, 12 October 2024

2024-10-12T01:44:34Z

← Older revision		Revision as of 01:44, 12 October 2024
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	! rowspan=2 \| [[Ammo]]		! rowspan=2 \| [[Ammo]]
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	\|[[File:Flag_us_new.png\|50px]]<br><strong>[[US]]</strong>\|\| [[File:Hush Puppy.png\|512px]]<br><b>[[Mk22 Mod 0 Hush Puppy]]</b> \|\| [[File:Weapon mk22 mod0.png\|512px]] \|\| [[File:Class_sniper.png\|50px]] <b>[[Sniper]]</b><br> \|\| 8 / 16		\|[[File:Flag_us_new.png\|50px]]<br><strong>[[US]]</strong>\|\| [[File:Hush Puppy.png\|512px]]<br><b>[[Mk22 Mod 0 Hush Puppy]]</b> \|\| [[File:Weapon mk22 mod0.png\|512px]] \|\| [[File:Class_sniper.png\|50px]] <b>[[Sniper]]</b><br> \|\| 8[[+1]] / 16
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Skizmophonic at 04:48, 4 October 2024

2024-10-04T04:48:48Z

← Older revision		Revision as of 04:48, 4 October 2024
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	! rowspan=2 \| [[Place of Origin]]		! rowspan=2 \| [[Place of Origin]]
	! rowspan=2 \| [[Date]]		! rowspan=2 \| [[Date]]
	! rowspan=2 \| [[~~Armory~~]]		! rowspan=2 \| [[Manufacturer]]
	! rowspan=2 \| Barrel Length		! rowspan=2 \| Barrel Length
	! rowspan=2 \| Total Length		! rowspan=2 \| Total Length

Skizmophonic at 05:38, 20 June 2024

2024-06-20T05:38:12Z

← Older revision		Revision as of 05:38, 20 June 2024
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	! Partial!! Empty		! Partial!! Empty
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	\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\| Seconds\|\| Seconds		\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|2 Seconds\|\|2.33 Seconds
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Skizmophonic at 04:23, 25 May 2024

2024-05-25T04:23:04Z

← Older revision		Revision as of 04:23, 25 May 2024
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	! Partial!! Empty		! Partial!! Empty
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	\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|NO\|\|NO		\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\| Seconds\|\| Seconds
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Skizmophonic at 03:39, 25 May 2024

2024-05-25T03:39:55Z

← Older revision		Revision as of 03:39, 25 May 2024
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	! rowspan=2 \| Leg ×		! rowspan=2 \| Leg ×
	! rowspan=2 \| Arm ×		! rowspan=2 \| Arm ×
	! ~~rowspan~~=2 \| ~~[[Bayonet]]~~		! colspan=2 \| Reload Speed
	! ~~rowspan=2 \| [[Rifle Grenades]]~~		\|-
			! Partial!! Empty
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	\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|NO\|\|NO		\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|NO\|\|NO

Skizmophonic at 01:14, 14 May 2024

2024-05-14T01:14:23Z

← Older revision		Revision as of 01:14, 14 May 2024
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	<gallery mode="packed" heights="400px">		<gallery mode="packed" heights="400px">
	File:		File:Mk22-Hush-Puppy.jpg
			File:DSCN6340.JPG
			File:Mk22-Hush-Puppy-Hampton-roads-naval-museum.jpg
			File:Mk-22-mod-0-US-Navy.jpg
			File:Mk-22-with-silencer-US-Navy.jpg
			File:Mk22Stock.jpg
			File:Mk22Stock2.jpg
			File:Mk22-hushpuppy-small-arms-of-the-world.jpg
	</gallery>		</gallery>

← Older revision		Revision as of 04:48, 4 October 2024
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	! rowspan=2 \| [[Place of Origin]]		! rowspan=2 \| [[Place of Origin]]
	! rowspan=2 \| [[Date]]		! rowspan=2 \| [[Date]]
	! rowspan=2 \| [[~~Armory~~]]		! rowspan=2 \| [[Manufacturer]]
	! rowspan=2 \| Barrel Length		! rowspan=2 \| Barrel Length
	! rowspan=2 \| Total Length		! rowspan=2 \| Total Length

← Older revision		Revision as of 03:39, 25 May 2024
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	! rowspan=2 \| Leg ×		! rowspan=2 \| Leg ×
	! rowspan=2 \| Arm ×		! rowspan=2 \| Arm ×
	! ~~rowspan~~=2 \| ~~[[Bayonet]]~~		! colspan=2 \| Reload Speed
	! ~~rowspan=2 \| [[Rifle Grenades]]~~		\|-
			! Partial!! Empty
	\|-		\|-
	\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|NO\|\|NO		\|30\|\|×2.4 = 72\|\|×1.6 = 48\|\|×1.5 = 45\|\|×1.15 = 34.5\|\|×1.15 = 34.5\|\|NO\|\|NO