Background
We’ve noticed that many people on Discord servers and forums are often confused about the names and differences between the M110 and M110A1. Today, let’s break down the relationship and differences within the M110 series.
Who manufactures these guns? Who uses them?
- M110 is made by Knight Armament Company (KAC).
- The M110A1 is made by Heckler & Koch (HK).
- M110K1 is made by Knight Armament Company (KAC).
The official name of the M110 is the M110 Semi-Automatic Sniper System (M110 SASS). It was developed from the KAC SR-25 and was adopted by the U.S. military after the 2005 U.S. Army Semi-Automatic Sniper Rifle (XM110 SASR) competition.
On September 28, 2005, Knight’s Armament Co. won the contract to supply the M110 Semi-Automatic Sniper System. The M110 is similar to the SR-25/Mk 11 Mod 0 but has a different buttstock and rail system design. Both the SR-25, Mk 11 Mod 0, and M110 are based on Eugene Stoner’s original AR-10, with improvements by KAC to enhance compatibility with the AR-15, boost reliability, and increase accuracy.
E&C KAC M110 Sniper Rifle AEG Gel Blaster Replica – Full metal with V2.5 Gearbox
The M110 is set to be replaced by the lighter and more compact M110A1 CSASS, developed from the G28, a variant of the Heckler & Koch HK417.
In July 2012, the U.S. Army sought to convert the existing M110 rifles into the Compact Semi-Automatic Sniper System (CSASS), a shorter and lighter version with a collapsible stock and a removable flash suppressor. On April 1, 2016, the Army awarded Heckler & Koch a contract worth up to $44.5 million to replace the KAC M110, likely selecting the H&K G28. H&K was tasked with producing 3,643 rifles, designated as the M110A1 for the U.S. Army.
The M110A1 CSASS was expected to gradually replace the M110 in military service, but as of 2022, this has not fully occurred. However, several thousand M110A1 SDMRs have been deployed with the U.S. Army and Air Force, replacing various existing weapon systems.
E&C HK M110A1 DMR Gel Blaster Replica
E&C HK G28 DMR Rifle AEG Gel Blaster Replica
While the U.S. Army is replacing the M110 with H&K’s M110A1, the U.S. Special Operations Command (SOCOM) plans to upgrade its existing M110s using an upper conversion kit known as the M110K1.
Although the U.S. Army introduced the CSASS project in 2016 to adapt to future warfare environments, the Special Forces Raiders under the Marine Corps Special Operations Command (MARSOC) have already been using the KAC M110K1.
E&C KAC M110K1 Enhanced Combat Carbine Gel Blaster Replicas (Coming Soon)
In conclusion, the M110 series is a designation originally given by the U.S. military. Perhaps out of convenience, they continue to extend the “M110” name to a variety of new rifles, rather than creating entirely new names for each iteration. Again,
- M110 is made by Knight Armament Company (KAC), developed by SR25
- M110A1 is made by Heckler Koch(HK), developed by G28
- The M110K1 is manufactured by KAC and was developed from the M110
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