This is for the first time that a US-made weapon has been recovered from militants in the valley.
Khan said appropriate authorities and "concerned embassies" will be informed about the recovery of the M4.
He said that there are about five to 10 such weapons in the valley right now.
M4 carbine rifle is a premier rifle used by North Atlantic Treaty Organisation and by the militaries of country close to the US. An army trooper was also killed earlier. We have reasons to believe that this particular weapon was given by Pakistan Army to JeM carders.
" There are challenges in handling this M4 carbine. It is being used for social media goal by militants to show they have big weapons", IGP Muneer Khan said when asked if the AK 47 was still "relevant" at a press conference in Srinagar. "M16 is 1960 vintage while the M4 is 1990 vintage". The M4 rifle is hard to carry, maintain and hide.
The security forces recovered two AK-47 rifles and a pistol.
"Top commanders have been killed but militancy is still there", they said. It has very fine tolerances so it needs much more maintenance.