(_c_) Lift feed piece to its highest position and turn through an angle of 180 degrees so that lever points to rear. As flattened portion of axis is now opposite corresponding slot in upper bearing, feed piece may be removed to rear. 8th.—Remove ejector. (_a_) By means of key unscrew ejector cap and remove it. (_b_) Lift out ejector spring and then ejector. 9th.—Remove barrel. (_a_) Unscrew barrel locking nut one-sixth of a turn to a stop with right hand, using dismounting wrench. (_b_) Remove barrel by drawing it straight to front. 10th.—Remove hand guard. (_a_) Turn locking nut to left sufficiently to free its stud from engagement with hand guard. (This stud serves to hold hand guard in place while barrel is being mounted or dismounted.) (_b_) Remove hand guard by drawing it to front. 11th.—Unscrew and remove locking nut. 12th.—Remove fermeture nut. 13th.—Remove firing pin. Reverse breech block and firing pin will fall into the hand. 14th.—Remove extractor. (_a_) Grasp breech block with left hand and hand extractor with right; insert hook portion of latter between last and before last coil of extractor spring, compress the spring, tilt the end out of its seat and remove it. (_b_) By holding breech block upwards, extractor will fall out. 15th.—Remove firing gear from guard. (_a_) Hold stock between knees, the guard to the front. (_b_) With right hand lift hooked arm of trigger sufficiently to clear it entirely from vertical lever of sear. (_c_) With left hand catch knurled button forming outer extremity of sear axis and draw to left sufficiently to free right hand end of axis from its pocket. Now lift sear vertically from guard. (_d_) Lift trigger upward and forward, separating it and sear with spring attached from guard. (_e_) Detach respective ends of spring from sear and trigger. 16th.—Remove cartridge stop. (_a_) Unscrew cartridge stop holder by means of the dismounting wrench. (_b_) Withdraw cartridge stop spring and cartridge stop. ASSEMBLING. 1st.—Mount in order the following parts: fermeture nut, barrel nut, hand guard, barrel, ejector, spring and cap, feed piece, feed piece spring. 2nd.—Assemble the trigger, sear and sear spring, and then mount them in guard. 3rd.—Mount the recoiling parts in receiver. (_a_) Assemble extractor with breech block. (_b_) Mount the firing pin, bringing it to its rearmost position and turning head to left behind shoulder in breech block.