RE: Norinco Info needed
Here are the instuctions as per my JW15 owners manual
Remove the bolt from the rifle. Holding the bolt in one hand rotate the bolt 90 degrees clockwise (viewed from the rear) so that the firing pin emerges from its hole in the front of the bolt.
Depress the mainspring retainer ( thats the 1/4" button on the rear of the bolt under the safety lever) by pressing it against a firmly supported wood or soft metal object.
This will free the saftey so that is can be pulled out of the bolt. Slowly release the pressure on the bolt. The mainspring retainer, firing pin and bolt handle can now be removed.
Reassemble in reverse order.
I have had mine for 6-7 years now and it is very accurate. I strip it down and clean it about every 500 ronds or so. I have never had a misfire that wasn't the ammos fault tho.