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 of America
2010.[1] After witnessing the effects of USSOCOM snipers
Service history
and extensive after-action reports from SOF snipers
In service 2008[citation needed]–present throughout the Iraqi theater of operations, the U.S. Army
ran a competition involving several designs, including ri-
Wars War in Afghanistan, War in Iraq
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 detachable box 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Action Gas-operated, rotating bolt PALs magazine pouches of yet unpublished origin.[citation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 175 gr. 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
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From Wikipedia, the free encyclopedia M110 Semi-Automatic Sniper System
with integral folding front 600 meter back-up iron creased the lethality of the team…" - Program Manager
sight. Lt. Col. Chris Lehner.[5]
• The M110 buttstock: fixed, though the buttplate is The specifications the US Army has issued are as fol-
adjustable for length of pull to match user lows:[6]
preferences. Adjustment can be made without tools 1. Operation: Semi-automatic
via a notched hand-tightened knob on the right- 2. Caliber: Compatible with 7.62x51mm NATO cartridges
hand side of the stock. This feature was added during 3. Accuracy: Capable of 1.3 minute of angle dispersion or
the change from XM110 to M110. The fixed buttstock better with match ammunition
also features integral quick-detachable sling swivel 4. Size: Overall length shall be reduced using a shorter
sockets located on each side of the stock near the barrel and/or collapsible buttstock. Maximum length
rear of the lower receiver. not to exceed 39 without suppressor. Desired
• The addition of a flash hider to the barrel of the minimum length is less than 36 with stock collapsed.
M110, which also necessitates a modified QD 5. Weight: Weight shall be under 9.0 lb for unloaded
Suppressor unit similar to that on the Mk 11. rifle without optics and accessories
• The M110’s use of KAC’s one-piece 30 mm scope 6. Grip: A modular, adjustable pistol grip.
mount instead of two separate scope rings. 7. Trigger: A non-adjustable match style trigger.
Other changes were made when the XM110 made the 8. Hand guard: A forend that includes a fixed 12 o’ clock
transition to the M110. Features added were a buttstock rail with configurable 3, 6, and 9 o’ clock rails.
hand-tightening knob, sling swivel sockets, a double 9. Sound suppressor: A muzzle mounted, detachable
sided bolt catch, and a button on the folding front sight sound suppressor.
to allow it to be locked into position. 10. Muzzle device: A compensator/muzzle brake
On June 12, 2008, the M110 was ranked #2 on the U.S. compatible with the sound suppressor.
Army’s top ten inventions of 2007.[3] 11. Bipod: Tool-less detachment featuring cant and pan/
According to performance specification (MIL- track capability.
PRF-32316 (AR) w/AMENDMENT 1, 5 October 2009): 12. Day optic: An Army specified variable power day optic
and compatible rings.
3.4.1.1.1 Accuracy. The distance between the mean 13. Back up sights: Iron sights offset 45 deg from the DOS.
point of impact of each shot group, both unsup- 14. Sling attachment: Flush cup, quick detach sling
pressed and suppressed, shall be not greater than attachment points.
1.1 inches at 300 feet. 15. Other: The upgraded M110 must meet the operational
and environmental requirements that were fulfilled
3.4.1.1.2 Dispersion. The average mean radius by the original M110 SASS.
(AMR) (see 6.11), of each shot group shall be not
greater than to 0.68 inches at 300 feet. All targets
shall be fired on using M118LR ammunition or Sporting Use
equivalent, using five (5) round groups. In 2009, the M110 rifle and commercial equivalents were
added to the list of NRA-legal US service rifles under rule
AMR 0.68 inches for 5 round groups corresponds to 2.34 3.1.6 of the NRA High Power Rifle Rules.[7]
inches extreme spread for 10 round groups or 2.2 MOA
extreme spread for 10 round groups 300 feet.
References
Replacement or reconfigura- [1] DefenseLink: Contracts for Wednesday, July 16,
2008
tion of M110 [2] Lamothe, Dan (March 17, 2011). "Corps fielding
The US Army has issued a request to the private sector new semi-automatic sniper rifle". Marine Corps
to reconfigure or replace the current Knight Armament Times. http://www.marinecorpstimes.com/news/
M110 sniper rifle as the current version of the M110 is 2011/03/marine-corps-sniper-rifle-
not functioning well in the field requiring significant m110-031711w/. Retrieved 18 March 2011.
maintenance and replacement of parts.[4] The Army re- [3] "US Army Awards Top 10 Inventions of 2007"
sponded to the referenced article clarifying that the rifle [4] " Army Wants Lighter, Shorter M110 Semi-
is functioning perfect and they are just looking for a Automatic Sniper System
smaller, lighter version of M110 for the spotter in a [5] " Army Speaks to M110 Performance/Upgrade
sniper team, providing the sniper is equipped with the [6] FedBizOpps.com: M110 Semi-Automatic Sniper
new XM2010. "The spotter will have an urban sniper sup- System(SASS) Reconfiguration
port weapon which will be the M110. … Now you’ve in- [7] NRA High Power Rifle Rules: Section 3. Equipment
and Ammunition
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From Wikipedia, the free encyclopedia M110 Semi-Automatic Sniper System
External links • Knight’s Armament Company product page on the
SR-25 Series Rifles, includes the M110
• Program Executive Office (PEO) Soldier • Video demonstration of the M110 from Military
• M110 Semi-Automatic Sniper System (SASS) Fact Times
sheet • Gun-World.net gallery of the XM110 (Chinese)
• Global Security page on the M110
Retrieved from "http://en.wikipedia.org/w/index.php?title=M110_Semi-Automat-
ic_Sniper_System&oldid=466123902"
Categories:
• 7.62 mm firearms
• Semi-automatic rifles
• Sniper rifles
• Sniper rifles of the United States
• United States Marine Corps equipment
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