These 2 photos taken only seconds apart, illustrate how the UC-9 can transform from something that resembles a tablet PC to a functioning submachine gun at a moment’s notice.
Utah Conner with his trademark handlebar moustache.
Marty Pearl in a rare photograph holding an M249.
Byron Starnes (right) and John Mathis working on the mag-well hinge prior to production of the UC-9 SMG.
Byron Starnes (left) and John Mathis testing the pre-production UC-9.
An unpublished promotional shot for the original Model 21 as the “Radio Gun” in a scene from the 1990 movie RoboCop II.
The “Radio Gun” from RoboCop II is now owned by Kevin Brittingham of Advanced Armament Company who provided us with this studio photograph.
In this day of MP3 players and smart phones, some of the younger people who have seen the Model-21 have been confused as to what the original Model 21 was designed to blend-in as. This radio belongs to the author and was a gift from his Grandfather long ago. The similarities between it and the original design of the Model 21 illustrate what Utah Conner may have originally been trying to emulate.
The UC-9 is shipped in a custom fitted aluminum case, slotted for the UC-9, two spare magazines, spare dust covers, a LULA Loader and all tools and accessories for the laser sight adjustment.
Close-up photograph of the dust cover. When unfolding the UC-9 the dust cover pops off and falls to the ground allowing a momentary distraction when deployed. Those concerned with keeping the dust cover of their UC-9 in pristine condition can easily remove it prior to firing.
UC-9 opening sequence. (1) To open the UC-9, holding it with the dust cover up, place your right hand on the lower portion of the buttstock and left hand on the upper receiver. (2) As you hold tight and extend your arms it will unfold, releasing the dust cover. (3) As it is unfolded and begins to take shape, when the receiver is in line with the stock it will lock in the open position. (4) At this point the magazine well / pistol grip will start to drop into position. (5) Supporting the weight of the UC-9 with the left hand, as you move the stock to the right shoulder, the right hand should wrap around the pistol grip and rotate it rearward until it locks into place.
The non-reciprocating charging handle is slotted allowing the laser to shoot through, unobstructed while providing it with protection from damage.
This photograph illustrates the proper and improper way to hold the UC-9 for firing. While it may be tempting to utilize the charging handle as a vertical fore grip, it should NEVER be used this way. This grip positions the hand MUCH too close to the muzzle.
The view from the business end of the UC-9 illustrates the positioning of the LaserMax laser as it shines through the center of the charging handle.
After the rate of fire testing was through, the target looked as though it was used during a qualification course. Not a single round went outside of this B-27 target while firing 20-round bursts from a distance of 10 yards, even with several shooters.
UC-9 Rate of Fire and Muzzle Velocity Testing Chart.
The end result of firing several hundred rounds during basic function testing. Numerous bursts were concentrated at the body and head sections with surprisingly accurate results for an open-bolt, laser-sighted SMG during daytime light conditions. The tiny laser is extremely visible despite its compact size.
The magazine-well. When extended and locked it would never be suspected it is not welded in this position to anyone using it. The UC-9 is fed from unmodified Uzi SMG magazines which are plentiful and well regarded for their reliability.
The most ingenious engineering portion of the UC-9 project may in fact be the design and position of the release button. The piece you see (at arrow) with the two rivets is actually a button that must be depressed to unlock and fold the UC-9 after use. This mechanism is designed so well that it went completely undetected to numerous RKIs when challenged to close and fold the SMG back up for transport.
UC-9 closing sequence. With the UC-9 in a position where it is supported by your left hand and the stock is in the area of your right shoulder (1) you can reach your thumb up past the end of the pistol grip and depress the “press point” with little practice. It is important to hold the UC-9 upright to close it, not upside-down looking into the hollow stock cavity. The next step (2) is to hold the stock with your right hand, and holding it in a position so the now empty dust cover slot is open is up, slowly fold the 2 sides together. The pistol grip will freely swing down (3) if this is being done correctly and you will feel little or no resistance. When completely closed (4) the dust cover can be installed (5) by placing the angled lip on the bottom of the dust cover into the slot on the buttstock and pushing down firmly to lock it in place.
The trigger-guard folds forward during closing as illustrated here. This complex design even includes a trigger that also folds forward allowing the mag-well to rest parallel to the barrel when closed.