From Wikipedia, the free encyclopedia M110 Semi-Automatic Sniper System
M110 Semi-Automatic Sniper System
M110 Semi-Automatic Sniper System
The M110 Semi-Automatic Sniper System
Type Sniper rifle
The M110 SASS with AN/PVS-10 Sniper Night Sight.
Place of origin United States
2010.[1] After witnessing the effects of USSOCOM snipers
Service history
and extensive after-action reports from SOF snipers
In service 2008–present throughout the Iraqi theater of operations, the U.S. Army
Wars War in Afghanistan, War in Iraq
ran a competition involving several designs, including ri-
fles from Knight’s Armament Company, Remington, and
Production history DPMS Panther Arms.[citation needed] On September 28, 2005,
Manufacturer Knight’s Armament Company the Knight’s Armament Co. rifle won the competition and
was selected to be the M110 Semi-Automatic Sniper Sys-
Specifications tem. In April 2008, U.S. Army soldiers from Task Force
Weight 6.94 kg (15.3 lb) with scope, bipod, and a Fury in Afghanistan were the first in a combat zone to re-
loaded 20-round magazine ceive the M110. The troops rated the weapon very highly,
noting the quality of the weapon and its semi-automatic
Length 1,029 mm (40.5 in) (buttstock fully
compressed), capabilities compared to the bolt-action M24. The Unit-
1,181 mm (46.5 in) (buttstock fully ed States Marine Corps will also be adopting the M110
compressed and suppressor attached) to replace the M39 and Mk 11 as a complement to the
Barrel length 508 mm (20 in)
M40A5.[2] It is manufactured by Knight’s Armament Com-
pany in Titusville, Florida, though the complete system
incorporates a Leupold 3.5–10x variable power daytime
Cartridge 7.62x51mm NATO
optic, Harris swivel bipod, AN/PVS-14 night sight and
Action Gas-operated, rotating bolt PALs magazine pouches of yet unpublished origin.[citation
needed] The rifle has ambidextrous features such as a
Rate of fire Semi-automatic
double-sided magazine release, safety selector switch,
Muzzle velocity 783 m/s (2,570 ft/s) with 175gr. M118LR and bolt catch.
Effective range 800 metres (875 yd) (point targets)
Feed system 10 or 20-round detachable box magazine Design
The rifle is similar to the SR-25/Mk 11 Mod 0, but differs
SASS)
The M110 Semi-Automatic Sniper System (or M110 SASS significantly in buttstock and rail system design. The
is a semi-automatic sniper rifle that is chambered for SR-25, Mk 11 Mod 0, and M110 are based loosely on the
the 7.62x51mm NATO round, developed by the American original AR-10 developed by Eugene Stoner but feature
firearm manufacturer Knight’s Armament Company. additional refinements instituted by KAC to maximize
parts commonality with the AR-15 design, improve
Overview weapon reliability, and increase accuracy.
The main differences between the Mk 11 and M110
The M110 Semi-Automatic Sniper System is intended to
are improvements suggested by a user group meeting be-
replace the M24 Sniper Weapon System used by snipers,
tween NAVSOC, USASOC and USA in 2007:
spotters, designated marksman, or squad advanced
• The rail system used: the KAC Free Floated RAS on
marksmen in the United States Army. However, the
the Mk 11 is replaced by a URX modular rail system
Army still acquired M24s from Remington until February
1
From Wikipedia, the free encyclopedia M110 Semi-Automatic Sniper System
with integral folding front 600 meter back-up iron 4. Size: Overall length shall be reduced using a shorter
sight. barrel and/or collapsible buttstock. Maximum length
• The M110 buttstock: fixed, though the buttplate is not to exceed 39 without suppressor. Desired
adjustable for length of pull to match user minimum length is less than 36 with stock collapsed.
preferences. Adjustment can be made without tools 5. Weight: Weight shall be under 9.0 lb for unloaded
via a notched hand-tightened knob on the right- rifle without optics and accessories
hand side of the stock. This feature was added during 6. Grip: A modular, adjustable pistol grip.
the change from XM110 to M110. The fixed buttstock 7. Trigger: A non-adjustable match style trigger.
also features integral quick-detachable sling swivel 8. Hand guard: A forend that includes a fixed 12 o’ clock
sockets located on each side of the stock near the rail with configurable 3, 6, and 9 o’ clock rails.
rear of the lower receiver. 9. Sound suppressor: A muzzle mounted, detachable
• The addition of a flash hider to the barrel of the sound suppressor.
M110, which also necessitates a modified QD 10. Muzzle device: A compensator/muzzle brake
Suppressor unit similar to that on the Mk 11. compatible with the sound suppressor.
• The M110’s use of KAC’s one-piece 30 mm scope 11. Bipod: Tool-less detachment featuring cant and pan/
mount instead of two separate scope rings. track capability.
Other changes were made when the XM110 made the 12. Day optic: An Army specified variable power day optic
transition to the M110. Features added were a buttstock and compatible rings.
hand-tightening knob, sling swivel sockets, a double 13. Back up sights: Iron sights offset 45 deg from the DOS.
sided bolt catch, and a button on the folding front sight 14. Sling attachment: Flush cup, quick detach sling
to allow it to be locked into position. attachment points.
On June 12, 2008, the M110 was ranked #2 on the U.S. 15. Other: The upgraded M110 must meet the operational
Army’s top ten inventions of 2007.[3] and environmental requirements that were fulfilled
According to performance specification (MIL- by the original M110 SASS.
PRF-32316 (AR) w/AMENDMENT 1, 5 October 2009):
3.4.1.1.1 Accuracy. The distance between the mean Sporting Use
point of impact of each shot group, both unsup- In 2009, the M110 rifle and commercial equivalents were
pressed and suppressed, shall be not greater than added to the list of NRA-legal US service rifles under rule
1.1 inches at 300 feet. 3.1.6 of the NRA High Power Rifle Rules.[6]
3.4.1.1.2 Dispersion. The average mean radius
(AMR) (see 6.11), of each shot group shall be not References
greater than to 0.68 inches at 300 feet. All targets [1] DefenseLink: Contracts for Wednesday, July 16,
shall be fired on using M118LR ammunition or 2008
equivalent, using five (5) round groups. [2] Lamothe, Dan (March 17, 2011). "Corps fielding
new semi-automatic sniper rifle". Marine Corps
AMR 0.68 inches for 5 round groups corresponds to 2.34 Times. http://www.marinecorpstimes.com/news/
inches extreme spread for 10 round groups or 2.2 MOA 2011/03/marine-corps-sniper-rifle-
extreme spread for 10 round groups 300 feet. m110-031711w/. Retrieved 18 March 2011.
[3] "US Army Awards Top 10 Inventions of 2007"
Replacement or reconfigura- [4] " Army Wants Lighter, Shorter M110 Semi-
Automatic Sniper System
tion of M110 [5] FedBizOpps.com: M110 Semi-Automatic Sniper
The US Army has issued a request to the private sector System(SASS) Reconfiguration
to reconfigure or replace the current Knight Armament [6] NRA High Power Rifle Rules: Section 3. Equipment
M110 sniper rifle as the current version of the M110 is and Ammunition
not functioning well in the field requiring significant
maintenance and replacement of parts.[4] External links
The specifications the US Army has issued are as fol-
• Program Executive Office (PEO) Soldier
lows:[5]
• M110 Semi-Automatic Sniper System (SASS) Fact
1. Operation: Semi-automatic
sheet
2. Caliber: Compatible with 7.62x51mm NATO cartridges
• Knight’s Armament Company product page on the
3. Accuracy: Capable of 1.3 minute of angle dispersion or
SR-25 Series Rifles, includes the M110
better with match ammunition
2
From Wikipedia, the free encyclopedia M110 Semi-Automatic Sniper System
• Video demonstration of the M110 from Military • Gun-World.net gallery of the XM110 (Chinese)
Times • Global Security page on the M110
Retrieved from "http://en.wikipedia.org/w/index.php?title=M110_Semi-Automat-
ic_Sniper_System&oldid=458668111"
Categories:
• 7.62 mm firearms
• Semi-automatic rifles
• Sniper rifles
• United States Marine Corps equipment
• Sniper rifles of the United States
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