Quoted:
we know that eugene stoner invented the rifle but where did he invent theat rifle?

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Quoted:
Eugene Stoner invented the AR-10, not the AR-15.

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Yep. Then he was forced to scale it down to a "mouse gun".   TT

ARMALITE’S DEVELOPMENTS. The following firearms were developed or produced by ArmaLite. Other AR
family firearms were designed by Eugene Stoner, but not developed by ArmaLite, and aren’t listed.
AR-1 (1954 and before)
“Parasniper” rifle, using either military or sporting calibers, including 7.62 NATO. The Parasniper is a very high
quality, lightweight bolt action rifle designed as a fine sporting rifle or for special military sniping operations.
The AR-1 began life at ArmaLite’s first location in Hollywood, California. It broke new ground by using foam filled
fiberglass stock and an anodized aluminum barrel with a thin steel liner. A variety of receivers were to be used, with
a Remington action common. The rifle with scope weighs a modest 6 pounds. Very few AR-1s were made.
AR-5 (1954-55)
A bolt action, .22 Hornet survival rifle adopted by the Air Force in 1956. It weighed a mere 2 ¾ pounds.
It distinguishing characteristic was the ability to detach the barrel from the action, and the action from the stock, and
place both within the stock. With the buttcap replaced, the rifle would float. The government specification for the
MA-1 called for a second, .22 long rifle barrel to be attached outside the stock.
After adopting the AR-5 as the MA-1, the Air Force failed to follow through with a purchase. The main effect of
the AR-5 was to whet ArmaLite’s appetite for government business. It led to development of the AR-7.
AR-7 (1959-60)
The AR-7 Explorer was the first commercial item to be put into production by the ArmaLite Division of Fairchild.
This rifle is the civilian version of the Air Force adopted AR-5 Survival Rifle. The AR-7 fires the popular .22 long
rifle rimfire cartridge. The rifle disassembles without the use of tools and stows inside its plastic butt stock. The
AR-7 weighs as little as 2 ¾ pounds and will float in water, either assembled or in the stowed configuration. The
action is semi -automatic and is fed from an eight-round magazine.
The AR-7 was sold to Charter Arms in xx. It has been in intermittent production since. ArmaLite reintroduced it in
early 1998.
AR-10 (1955-56)
Basic infantry rifle, caliber 7.62mm NATO. The AR-10 was conceived by Eugene Stoner, and was tested by US.
Ordnance as early as 1956 at Springfield Armory. It was licensed to Artillerie Inrichtingen in Holland in 1957, and
with the AR-15 was licensed to Colt’s Patent Firearms Company in 1959.
The AR-10 combined a number of previous features with a new gas system patented by Stoner. In the Stoner
system, gas ported off the barrel travels down a tube back into the upper receiver, and into the bolt carrier. It enters
an expansion chamber, where it expands and drives the carrier to the rear. The rearward movement of the carrier
transferred by a cam pin riding in a curved path and engaging the bolt, forces the bolt to rotate to unlock.
(Common reports that the Stoner system is copied from the Swedish Ljungman system are incorrect: the Ljungman
system has a tube carrying gas ported off the barrel, but the tube simply directs the gas into a cavity in the top of the
carrier to blow the carrier to the rear.)
The AR-10 was later improved with lessons learned from the early AR-15s. The new model was designated the
AR-10a. It was produced in prototype form only.
The AR-10 was intended to compete with Springfield’s M-14 rifle and FN’s FAL. It was, unfortunately, a bit too
late. Although it showed great promise during tests, it required a bit of further development. It was too late.
The major effect of the AR-10 was to lead to Army interest in a similar rifle of smaller caliber. That rifle became
the AR-15.
AR-10B (1994-96)
An update of the AR-10 placed in production in 1996.
The AR-10 was fielded in very small numbers: less than 6,000. Despite the small numbers, the fame of the rifle
grew to take the rifle to cult status. It was, after all, the more powerful and rare precursor to the AR-15. Civilian
shooters took great pains to recover used AR-10s from the surplus market and convert them to civilian rifles by
means of new, semi-automatic only receivers.
The popularity of the AR-10 rifle led Knight’s Manufacturing and, later, ArmaLite to return it to production. Knight
entered the market first with an AR-10 derivative called the SR-25.
The SR-25 combined features of the AR-10 with as many parts of the AR-15 as could be used. The ArmaLite AR-
10B was then patterned on the SR-25 rifle. To improve function, the ArmaLite AR-10B employs far fewer parts
from the M-15/M-16 rifles than the SR-25, and uses a modified version of the proven M-14 rifle magazine.
AR-15 (1956-1959)Basic infantry rifle using ArmaLite developed .223 caliber ammunition. The AR-15 was licensed to the Colt’s
Patent Firearms Manufacturing Company in January 1959.
The U.S. Air Force completed tests of the AR-15 in January 1961. The Air Force procured 8,500 rifles in 1961 and
standardized the AR-15 in 1963. 85,000 rifles were purchased in that year. The military designation of the AR-15 is
M-16.

ArmaLite continued to market the AR-10 based on a limited production of rifles at their Hollywood facility. These limited production, virtually hand-built rifles are referred to today as the Hollywood model AR-10.

ArmaLite also re-introduced the AR-10, this time using a design derived from the original Hollywood prototypes of 1956, and designated the AR-10A. Unable to produce either rifle in quantity, ArmaLite was forced to license both designs to Colt in early 1959. That same year, ArmaLite moved its corporate offices and engineering and production shop to new premises at 118 East 16th Street in Costa Mesa, California.[13]