E
N
The Upper Receiver
G
To disassemble the Upper Receiver (refer to Figure 15):
L
1. Remove five
I
and lift the
S
of the
Hex Nuts
Note that the Magazine Release Mechanism parts (25, 26, and 27) stay with the left half
H
of the Upper Receiver. For Magazine Release Mechanism disassembly instructions, see
below.
2. Remove
Barrel Adapter
3. Clean and inspect parts for damage. Replace any damaged parts.
4. Clean the inside of each Upper Receiver half.
Reassembly:
1. Make sure all parts are cleaned.
2. Place the
Right Upper Receiver
3. Insert the
Ball Latch
Receiver half. Make sure the Barrel Adapter is rotated to its locked position so it doesn't
slide out.
4. Use your finger tips to guide the Left Receiver half straight down on to Right Receiver
half until both receiver halves come together. If they do not fit flush the first time,
check to make sure the parts have stayed in place, and repeat until both halves come
together.
5. Insert five
Screws
(22) are in the recessed areas designed for them. Carefully tighten all 5 screws (be
careful to not overtighten and strip threaded parts).
Magazine Release Mechanism
1. With receiver halves apart, push the
degrees, then release it.
2. Remove the
3. Remove
Magazine Release Pin
4. Clean and inspect parts. Replace any damaged parts. Reassemble in the reverse order.
Receiver Screws
Left Receiver Half
(22), as they might come loose from the Right Receiver half.
(24), remove
(10),
Barrel Adapter
(8) into holes they were removed from. Make sure the
Magazine Release button
(8) holding the two Upper Receiver halves together,
(1) off from the
Right Receiver Half
(10), remove
Ball Latch
half (2) on flat surface.
(24), and
Magazine Release Button
(26) and
Spring
(25) from the Left Upper Receiver.
20
(2). Keep track
(23).
O-ring
(23) into the Right
O-ring
Hex Nuts
(26) and turn it 90
(27).