Full Auto Ruger 10/22 Conversion Manual 0879472618, 9780879472610

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~ “FULL ‘AUTO CONVERSION MANUAL

Sequence

Of

Operation

A look through the accompanying drawings give the exact orientation and relationship

will

of the parts controlling

the firing

To achieve positive the

and reliable

trigger

group

10-22

was

redesigned

design HK-G3

of the Belgian FN-FAL battle rifle families.

weapon systems and reliability.

The

ed-bolt

modified

mode

When ing

(1)

1.

for

the

functioning,

select-fire

incorporating

are

basic

and West Both of

German these

legendary

in

still

retains

10-22

the

modified

of events

Ruger

the

of operation.

firing

sequence

cycle.

weapon,

performance

the

the

clos-

follow-

occur:

COCKING THE WEAPON

Assuming

there

is a loaded

magazine

in place,

the user retracts the bolt handle (and bolt assembly) which rotates the hammer rearward. This action compresses the recoil spring.

2. As the hammer almost completes its rearward rotation, the bottom of the hammer contacts the top of the disconnector which in turn pivots downward, releasing the sear to rotate upward into position against the hammer. The engagement between

this

the

hammer

time

and

because

the

sear

is

hammer

not

is

yet

set

fully

at

rotated

rearward.

3. During this same initial rearward movement of the bolt and hammer, the release lever and catch also move rearward slightly. The travel of these parts is limited by the ejector pin

which

is positioned

through

a slot

in the

release

lever. Both parts have independent’ torsion springs which forces them to rotate rearward. The stationary arm of these springs locates against the ejector pin. As the bolt and hammer complete their rearward travel, the engagement surface of the catch is against the hammer ready

to engage

the

4. When released. it

'burst'

notch.

the bolt is fully retracted, Recoil spring tension then

it is propels

forward.

5. At this from contact

same instant, the hammer (released with the bottom of the bolt) rotates

forward slightly and catch, (both respective

6. As a live

engagement

the bolt cartridge

to chamber

and securely engages previously positioned)

it.

the sear in their

notches.

is moving forward, it from the magazine and

strips begins

7,

At

a

given

point

just

before

completely, the top of the previously moved rearward)

release makes

the

bolt

closes

lever (having contact with

@ radiused slot machined in the bottom of the bolt. As the bolt continues forward motion, the release lever rotates forward. Through engagement with the catch by means of a laterally positioned roll pin, the release lever rotates the catch out of engagement with the hammer. (Both the catch and release lever pivot on a

common pin). At

(2)

this

point,

the weapon

is

ready

to fire.

SEMI-AUTO FIRE

1. The position

weapon is now in a loaded and cocked as established in the sequence above.

2. The safety should now be moved to the “OFF” position. (The safety is unaltered in this modification and functions identically as before. By moving the safety to “OFF,” the lower lug of the sear is provided with clearance to enable

downward 3. the

tion

travel

when

the trigger

is depressed).

The selector lever must be rearward, or “semi” position.

a

lug

on

the

bottom

of

pivot will be positioned in and will limit the upward section of the trigger.

bi

the

positioned in In this posi-

selector

lever

a downward position travel of the rear

4. Depress the trigger, thereby releasing the sear and hammer engagement. The hammer, under spring tension from the hammer spring, rotates forward striking the rear of the firing pin and detonating the cartridge. 5. The bolt, acting on the pressure generated during the resultant explosion of detonation, moves rearward, extracting and ejecting the fired cartridge case. 6. As the bolt moves rearward, the release lever moves as previously explained. As _ the bolt completes rearward travel, the disconnector

disengages the sear enabling it to for re-engagement with the hammer described).

be in position (as previously

7. Forward bolt travel performs the same functions as previously described. For another shot to be fired, the user must release the trigger and then depress it again to resume the sequence as described.

(3) 1.

FULL AUTO The

weapon

(as described 2. in

The

is

in

a

loaded

and

cocked

position

(as

described

in #1-7).

safety

is

moved

#2-2).

12

"OFF"

3. the

tion,

The selector lever must be forward or ‘BURST’ position.

the

lug

on

the

bottom

of

positioned in In this posi-

the

selector

lever pivot has rotated rearward enough to avoid contacting the upper, rear area of the trigger. The trigger in this position can be depressed further.

4. Fully depress the trigger, thereby releasing the hammer-sear engagement and resulting in mo of the cartridge (as described in #2-4). 5. The trigger remains depressed cycles rearward, extracting and fired case (as described in #2-5),

as the ejecting

6.

have

The

rearward

release

lever

(as described

and

catch

in #1-3).

bolt the

rotated

7. At the rearmost travel of the bolt and hammer, the disconnector pivots downward and releases the sear to pivot upward. However, because the trigger/sear assembly has rotated further down than it did in the “semi" mode, the sear is not high enough to engage the hammer. The Catch securely engages the hammer “burst notch,” thereby holding the hammer rearward as the bolt begins forward travel, stripping and chambering a live cartridge.

8. At the instant before the bolt closes completely, the release lever contacts the bolt, pivots forward and disengages the catch (as described in #1-7). This allows the hammer to strike the firing pin and detonate the cartridge.

13

This

is

cycle

released.

the hammer,

is

The

repeated

sear

and interrupt

can

14

until

then

the

rise,

trigger

intercept

the firing cycle.

SEMI-AUTO FUNCTIONING Selector is set at "SEMI". Bolt is in closed position. Hammer is cocked, sear engaged. Release lever and catch have pivoted Safety "ON".

*

Moving safety to “OFF” will fire weapon.

and

forward.

depressing

OPERATING SEQUENCE FULL SCALE DEWG

NO.

trigger

/4

FULL-AUTO FUNCTIONING Selector

is set at "BURST".

Safety

“OFF”.

Weapon

has fired and bolt

is moving

recoil spring tension. Trigger is fully depressed,

low enough

to not engage

Release lever and catch is engaging

catch burst

lowering

hammer.

have moved notch,

When bolt contacts and trips the catch assembly, the hammer falls ridge.

OPERATING FULL

SCALE

forward the

sear

rearward

nose

and

release lever and to detonate cart-

SEQUENCE DRWG

under

NO_

15

2 Parts

To Be Removed Semi-Auto

Due to the design and characteristics of the Ruger 10-22, it has been necessary to eliminate the use of the bolt lock, and bolt lock spring.

lever, and

This

was

release

pivot

originally All

pin

are

other

necessary

lever

occupy

spring,

located.

the

components

sion.

V

because

space

are

the

catch,

catch

where

used

in

these

this

release

spring,

parts

conver-

PARTS TO BE REMOVED FOR SELECT

#1 Bolt

Lock

FIRE

10-22 CONVERSION

#2 Spring

Bolt

18

Lock

3 Parts To Be

For 10-22,

select-fire conversion of the Ruger minor modifications to six parts of the

standard and

Modified

carbine

purpose

is

of each

Receiver-

required.

The

is described

Drawing

modifications

below.

# 1.

The receiver requires two 1/16" x .030 deep drilled detents, positioned in such a manner as to securely locate the position of the selector lever. Trigger Housing- Drawing # 2. The trigger housing requires

hole

be

drilled

cated, This catch/release

hole

and

through

the

that

housing

facilitates assembly lever assembly. Also,

9/16"

long

x

1/8"

wide

required as indicated to allow of the selector lever assembly.

Stock-

Drawing

a

as

1/8"

indi-

of the a 7/32"

slot

is

assembly

# 3.

e stock must be altered as shown to allow clearance for the selector lever assembly.

4,

Bolt- Drawing # 4, The bolt requires a slot or cut into the bottom as provides

a

for contact

5.

Trigger-

contact

with

surface

the

Drawing

to be machined indicated. This and

release

proper

timing

lever.

# 5.

e

trigger requires a small clearance cut to be made in the upper, rear portion near the disconnector pin hole. The web area

must be filed (as further rotation of

indicated) to provide the trigger assembly.

The drawing can be used as a location. Also, a small .150 is epoxied in position in the

template for x .030 shim slot at the

position

necessary

indicated.

limit the upward it disengages from Hammer-

Drawing

A “BURST” indicated.

assembled.

This

is

travel of the sear the disconnector.

to

when

# 6.

notch This

is

cut engages

20

into the

the

hammer catch

as when

!,050

!,000

oT RR

\

O Y

oN

O

*

—§/ 4/5Selector Drill

Positioning

1/16"

diameter

deep

RECEIVER —F A.

L FULL SCALE

DRWG_ 21

NQ_]

Detents x

.030

/

125

e— | 4350 —

ae

/]

He

(.9375) ——

Drill

562

Drill

7/32" (.2187)

right

trigger

diameter

here

hole through housing

Selector Assembly

1/8"

(.125)

dia-

meter hole through trigger housing (for

& Catch Pivot

only

is installed

by aligning the lugs and ector is rotated upwards

slot 90°.

TRIGGER HOUSING — FA, FULL SCALE DRWG_

in Trigger Housing and

inserting.

NO 2

Sel-

Inlet stock Assembly.

in

this

area

to provide

for Selector

STOCK FULL

SCALE

DRWG_

NO.

3

Depth of Slot

a | “N20 RADIUS + 2.975

aa

150

| i

—

\

|

MX

200 SN

SONS

Thickness

of

ee

.080

Slot

NS Diagonally shaded area of underside of bolt.

represents

the

flat

BOLT —F.A , SELECTIVE FIRE FULL SCALE DRWG. NO. 4 24

surfaces

NOTE The

bolt

ON BOLTS

design

for

the

Ruger

changed at some point. Below are of each. For this modification, be used

or

interchanged.

Old

Style

Bolt

New

Style

Bolt

25

10-22

was

shown examples each bolt can

ISO

File

X

web

Epoxy poxy

030

down

in

this

the

shim mini

thts

area.

TRIGGER FA, FULL SCALE

DRWG_NO.

— —, 750 -—

@ = “Tt

Jb (125) PIVOT PIN—CATCH LFULL SCALE | 26

REL. LEVER

area.

.025

90°

Burst

Notch

is

to be ground

HAMMER FA, |FULL SCALE

to

the

DRWG,

dimensions

NO.

6

shown.

4 Parts

for

The

To

Be

Manufactured

following

are

for

construction

select-fire

Materials

the

conversion

their

of

new

the

parts

are

Ruger also

required

10-22.

includ-

ed.

1.

Release

Lever-

Drawing

# 7.

The release lever is designed to be made from .050 thickness steel sheet metal. This part has a “tab” which is bent around almost

double,

providing

a

notch

for

location

of

the working arm of the release lever spring. The overall shape can be transferred by using the drawing as a template. The dimensioned areas should be as accurate as possible to ensure proper timing of hammer disengagement.

2.

CatchThe

Drawing

catch

# 8.

shown

can

be

made

by

bending

a

piece of .050 sheet metal into a channel shape of the proper width, and then filing the profile to match the drawing. A 3/32" x .510 roll pin is pressed through both

sides

of

a longer

the

pin

ed length.)

catch

through

as

and

indicated.

then

grind

(Press

to

finish-

Dimensioned

as

surfaces

possible

with

the

to

must

be

ensure

as

accurate

proper

engagement

hammer.

Spring-Release Lever- Drawing # 9. This torsion spring is to be made

music

wire

easily

or

made

an

equivalent.

with

a

little

from It

.030

can

practice.

be Use

a 1/8" approximate diameter rod clamped in a vise for an arbor. Cut about a 3" long piece of wire and clamp both ends with vise grips. When the approximate angle as shown in the drawing is achieved, release the spring and bend the two curves as shown. Cut spring arms to the approximate length as shown on the drawing.

4,

Spring-Catch-

Drawing

Same

in

as

above

Selector The

(if catch

Drawing

selector

thickness

stock

Lever-

lever

steel

available). as

used

If for

sufficient.

Selector

Positioning

lug

can

be

# 11.

can

spring

is

1s

# 10.

# 3.

made

be

made

stock,

neither the

Lugof

or is

release

Drawing any

from

.050

banding

available, lever

and

# 12.

available

steel

stock. To assemble in the selector lever, insert as shown and flatten the .125 x .060 diameter against the lever. The chamfer in the lever will allow the lug to mushroom and be securely fixed in place.

Selector Knob- Drawing # 13. The selector knob can be made

material

as

the

lug

in

#

7.

of

The

the

knob

same

is

knurled to provide a better grip. The .090 diameter x .040 “ball” firmly positions the selector assembly by mating with the indents in the receiver. To assemble the knob, either braze the knob in place, or

flare

the

3/16"

in chamfer position.

a

hole

1/8"

flare

the Use

the

knob

(.187)

diameter

lever after of a piece

in

the

center

securely.

into

the

the two are in rod with steel

as

a

punch

to

O50

Fold tab over to provide a notch for re-

lease lever spring.

| RELEASE LEVER FULL SCALE DRWG. NO. 7

Orill

3/32"

(.0937)

through catch Pin Location)

175

owvvyy

!

bd,

o/o—>

el i—

|

Drill 1/8" (.125) hole through catch

Y

!

S95

610

=.

N >

/ 3/32" diameter by .510 Roll

length

Pin

CATCH FULL

DRWG_

SCALE 33

NO.

8

(Roll

a4 .850

Be No Make springs from .030 diameter music wire. springs to approximate shape as shown.

SPRING — RELEASE LEVER FULL SCALE DRWG. NO.

9

Ft

.550

Nes

\— 140

SPRING — CATCH FULL

SCALE

DRWG. Mu

NO.

/O

Form

LO

oe

_- ee

yo (a) ye ¢ © —| je (187 45 (1875) /.250

he N

j

Ld

Chamfer

SFI FECTOR

125—>

EREe

Ye (125)

Lo)

FULL

'

.

|

¢

—>|-— 050

surfaces indicated -030 x 45°

JEVER

SCALE

DPRWG.

-—

NQ_L!

aa De “de

.500

a

aol loth iis250Jt ee ?

ene

3

“a

—>

O60

(2/87)

045

sreel kod

SELECTOR POSITIONING FULL SCALE DRWG

lax ty LUG NO Je

|

125

Flare this surface when assembled in Selector Lever

|SELECTOR FULL

ASSY

€

SCA/E

SEI.

DRWE_ 36

KNOB NO.

13

RELEASE l. 2. 3. 4. 5.

Release

Release

Lever

Lever

LEVER AND CATCH ASSEMBLY

Spring

Catch

Catch

Spring

Pivot Pin-Release

and

Lever

3

Catch

\

———

Sr

FRONT

~~

'A'This curved area on both springs is to be located against the rear side of the ejector pin, This provides tension on both = springs to

force

the

catch

and

release

7

lever

rearwards.

SOM

wWwNe

PARTS LIST Receiver

Trigger Guard Assembly Barrel Stock Receiver Cross Pins (2) Bolt Assembly Bolt Handle, Guide Rod, Spring Assembly Barrel Retainer Barrel Retainer Screws Barrel Band Magazine Trigger Housing Hammer Hammer Strut Hammer Spring

Hammer

Bushings

Hammer Hammer

Pivot Strut

Bye

and

Recoil

(2)

Pin Washer

Pin-Magazine

Latch and Ejector

in

Ejector Bolt Lock Spring Magazine Latch Plunger Magazine Latch Plunger Spring Bolt Lock Magazine Latch Safety Safety Detent Plunger Safety Detent Plunger Spring Trigger Trigger Plunger Trigger Plunger Spring Disconnector Disconnector Pivot Pin Sear Sear Spring

PARTS LIST CONTINUED Trigger Pivot Bolt Firing Pin Firing

Pin

Pin

Rebound

Firing Pin Stop Pin Extractor Extractor Plunger Extractor Spring Bolt Stop Pin

40

Spring

RUGER MODEL 10/22 CARBINE

4

10/22 CARBINE TRIGGER GUARD ASSEMBLY

2

‘

x

h39 “> 3332

10/22 CARBINE BOLT ASSEMBLY

42

‘

4 Whe

Desert Publications A division of the Delta Group

215 S. Washington El Dorado, AR 71730 U.S.A. [email protected]

ISBN 978-0-87947- 261-0 90000

9

"780879"47261

HL