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Repair Parts for AR-15 and M16 Rifles
We stock individual AR-15 and M16 parts as well as complete parts kits.
Please contact us for current pricing and availability.
Lower Receiver Diagram

Lower Receiver Parts List
|
Ref. |
Item Description |
Model |
Part Number |
Price |
|
1 |
BOLT CATCH |
For .223 & 7.62 X 39 Models |
SP62301 |
|
|
1 |
BOLT CATCH |
For 9mm Models |
SP62835 |
|
|
2 |
BOLT CATCH PIN |
All Models |
SP95105 |
|
|
3 |
BOLT CATCH PLUNGER |
All Models |
SP62178 |
|
|
4 |
BOLT CATCH SPRING |
All Models |
SP62177 |
|
|
5 |
BUFFER RETAINER |
All Models |
SP61582 |
|
|
6 |
BUFFER RETAINER SPRING |
All Models |
SP61694 |
|
|
7 |
MAGAZINE CATCH |
All Models |
SP61604 |
|
|
8 |
FIRE CONTROL SELECTOR |
All Models |
SP63000 |
|
|
9 |
TAKEDOWN PIN DETENT SPRING |
All Models |
SP61692 |
|
|
10 |
TAKEDOWN PIN DETENT |
All Models |
SP61698 |
|
|
11A |
RECEIVER PIVOT PIN SCREW |
All Models |
SP66819 |
|
|
11 |
RECEIVER PIVOT PIN |
All Models |
SP66818 |
|
|
12 |
MAGAZINE RELEASE BUTTON |
All Models |
SP62032 |
|
|
13 |
MAGAZINE RELEASE BUTTON SPRING |
All Models |
SP61759 |
|
|
14 |
TRIGGER GUARD PIVOT PIN |
All Models |
SP95106 |
|
|
15 |
TAKEDOWN PIN |
All Models |
SP61655 |
|
|
16 |
TRIGGER GUARD ASSEMBLY |
All Models |
SP61970 |
|
|
17 |
TRIGGER GUARD PIN |
All Models |
SP95101 |
|
|
18 |
TRIGGER GUARD SPRING |
All Models |
SP61531 |
|
|
19 |
TRIGGER GUARD PLUNGER |
All Models |
SP61250 |
|
|
20 |
FIRE CONTROL SELECTOR DETENT |
All Models |
SP61785 |
|
|
21 |
FIRE CONTROL SELECTOR SPRING |
All Models |
SP61569 |
|
|
22 |
PISTOL GRIP |
All Models |
SP64576 |
|
|
23 |
PISTOL GRIP LOCK WASHER |
All Models |
SP90001 |
|
|
24 |
PISTOL GRIP SCREW |
All Models |
SP92701 |
|
|
25 |
ACCU -WEDGE |
Models MT6830, MT6700, AR6830, AR6700 |
SP99009 |
|
|
26 |
FRONT ADAPTER ASSEMBLY** |
9mm Models-Factory Installed Only |
** |
|
|
27 |
REAR ADAPTER ASSEMBLY** |
9mm Models-Factory Installed Only |
** |
|
|
28 |
REAR MAGAZINE ADAPTER** |
9mm Models-Factory Installed Only |
** |
|
|
29 |
EJECTOR |
For 9mm Models Only |
SP62830 |
|
|
30 |
REAR MAGAZINE ADAPTER PIN** |
9mm Models-Factory Installed Only |
** |
|
|
31 |
MAGAZINE ADAPTER SPRING** |
9mm Models-Factory Installed Only |
** |
|
|
32 |
MAGAZINE ADAPTER PIN** |
9mm Models-Factory Installed Only |
** |
|
Pricing and specifications subject to change without notice
Fire Control Diagram

Fire Control Parts List
|
Ref |
Item Description |
Model |
Part Number |
Price |
|
1 |
PIN , HAMMER & TRIGGER |
Large Diameter .170 |
SP63158 |
|
|
Not Shown |
PIN , HAMMER & TRIGGER |
Small Diameter .155 |
|
|
|
Not Shown |
PIN , HAMMER & TRIGGER, Stainless Steel |
Small Diameter .155 |
|
|
|
2 |
HAMMER & HAMMER PIN RETAINER ASSY, .170, SEMI (Current) |
FOR .223 & 7.62 X 39 MODELS, Large Diameter (.170) |
SP63165 |
|
|
Not Shown |
HAMMER & HAMMER PIN RETAINER ASSY, .170, SEMI, 9mm |
For 9mm Models |
SP62865 |
|
|
Not Shown |
HAMMER & HAMMER PIN RETAINER ASSY, .155, SEMI, 9mm (older models) |
For older 9mm models w/ .155 pins |
|
|
|
Not Shown |
HAMMER & HAMMER PIN RETAINER ASSY, .155, AUTO |
For .223 or 9mm |
SP62317 |
|
|
Not Shown |
HAMMER & HAMMER PIN RETAINER ASSY, .155, BURST & 4-WAY |
For .223 or 9mm |
SP64561 |
|
|
3 |
HAMMER SPRING, SEMI & AUTO |
All Models |
SP61697 |
|
|
Not Shown |
HAMMER SPRING, BURST & 4-WAY |
All Models |
SP64558 |
|
|
4 |
DISCONNECTOR, .170, SEMI (current models) |
Large Diameter .170 |
SP63157 |
|
|
Not Shown |
DISCONNECTOR, .155, 4-WAY, (left/semi) |
Small Diameter .155 |
SP63716 |
|
|
Not Shown |
DISCONNECTOR, .155, 4-WAY, (right/burst) |
Small Diameter .155 |
SP63715 |
|
|
Not Shown |
DISCONNECTOR, .155, AUTO |
Small Diameter .155 |
SP62334 |
|
|
Not Shown |
DISCONNECTOR, .155, BURST, (left/semi) |
Small Diameter .155 |
SP64567 |
|
|
Not Shown |
DISCONNECTOR, .155, BURST, (right/burst) |
Small Diameter .155 |
SP64566 |
|
|
Not Shown |
DISCONNECTOR, .155, SEMI
(older models) |
Small Diameter .155 |
SP63036 |
|
|
5 |
TRIGGER, SEMI
(current models) |
Large Diameter .170 |
SP63156 |
|
|
Not Shown |
TRIGGER, SEMI
|
Small Diameter .155 |
SP63029 |
|
|
Not Shown |
TRIGGER, AUTO |
Small Diameter .155 |
SP61955 |
|
|
Not Shown |
TRIGGER, (0.155), BURST & 4-WAY |
Small Diameter .155 |
SP64641 |
|
|
6 |
DISCONNECT SPRING, AUTO, SEMI, BURST, (LEFT/SEMI) – Black Insert |
All Models |
SP63026 |
|
|
Not Shown |
DISCONNECTOR SPRING, BURST, (RIGHT/BURST) |
Small Diameter .155 |
SP64568 |
|
|
Not Shown |
DISCONNECTOR SPRING, SEMI, HEAVY DUTY |
All Models |
SA06001 |
|
|
7 |
TRIGGER SPRING |
All Models |
SP61657 |
|
|
Not Shown |
PIN, HAMMER & TRIGGER |
Diameter-1713 For CR Models |
SP64225 |
|
|
Not Shown |
|
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