"I know engineers that could not get it thiers back toeghter". ME! I'll admit it! Bachelors of Science Mechanical Engineering, Certified Journeyman Machinist, Aircraft Airframe and Powerplant Certified.
First time took me two freakin days! second, & third took a couple hours ALL WITH THE MANUAL!!! THEN I learned the trick of exactly when to put in the magazine and when to pull the trigger while its pointed DIRECTLY up, NOT just at a 70 or 80 deg angle or anything! Takes about a minute now. I admit to doing a double and tripple take when the manual said to "hit it with a hammer" to get it apart to!!!!!!!! "I just paid $500 for this thing! Hit it with a hammer?!?!?"
Before I bought mine I and two guys behind the counter at Williams gun sights took apart a Mark II I was looking at. It was still in peaces the next day when I went back & bought the Mark III. Aside from being a Chinese finger trap to put together I LOVE IT!