Results 1 to 4 of 4
Thread: ak build
-
August 27th, 2010, 05:23 PM #1Junior Member
- Join Date
- Aug 2010
- Location
-
Kansas City,
Kansas
- Posts
- 1
- Rep Power
- 0
ak build
Ahhhh, hey need a hand. I have bulgarina parts, minus the reciever barrel front trunnion. So I got a bulgarian barrel, a trunnion, reciever. Sounds good right? So the front sight is close to the barrel diameter, but the gas block and the rear sight is a little more than a .012 differance between them? dont these press on? Is this right? secondly the trunnion and barrel go together by hand? WTF! can someone help????Your friend in arms..
-
August 29th, 2010, 09:16 AM #2Banned
- Join Date
- Jul 2006
- Location
-
Pennsylvania
(York County) - Posts
- 1,295
- Rep Power
- 0
Re: ak build
trunion should be 0.0015" smaller than barrel OD for an interference fit. anything less than 0.0005 is gonna deform the cross pin and come apart in action, allowing excess headspace and gas venting, which ain't pretty in an AK that is close to your face.
gas block and rear sight base are also interference fits. sounds like you got a barrel that is not right. might be a chinese barrel...
-
August 29th, 2010, 09:48 AM #3Senior Member
- Join Date
- Feb 2007
- Location
-
Plum,
Pennsylvania
(Allegheny County) - Posts
- 440
- Rep Power
- 6744136
Re: ak build
Here is a list of dimentions of various AK parts it may help identifiy what you have
BARREL OVERALL LENGTH
SAIGA .223 ........16 Ό
SAIGA .308 .........16 Ό
BULGARIAN 5.45 AK-74 ......16 Ό
MAADI 7.62X39 ......16 1/2
HUNGARIAN SA2000M 7.62X39 ...16 1/4
HUNGARIAN AMD 65 .........12 ½
HUNGARIAN AMD 63 ..........16 ½
ROMANIAN G ........... 16 Ό
YUGOSLAVIAN AB2 .......16 Ό
YUGOSLAVIAN VIRGIN KRINK ..........10
YUGOSLAVIAN M72 RPK .......21 Ό
RUSSIAN MILLED AK-47 .......16 Ό
ROB. ARMS VEPR 7.62X39 ....16 5/8
POLISH U/F 7.62X39 .....16 Ό
POLISH TANTAL 5.45X39 ....16 5/8
MAK 90 7.62X39 U/F ......16 ½
MILLED TYPE 56 7.62X39 ....16 Ό
CHAMBER OUTSIDE DIAMETER
SAIGA .223 ..........N/A
SAIGA .308 ......... .. 986
BULGARIAN 5.45 AK-74 ........ N/A
MAADI 7.62X39 ......... N/A
HUNGARIAN SA2000M 7.62X39 ...... N/A
HUNGARIAN AMD 65 ......... .908
HUNGARIAN AMD 63 ......... .908
ROMANIAN G ........... .908
YUGOSLAVIAN AB2 .......... .908
YUGOSLAVIAN VIRGIN KRINK ........ .908
YUGOSLAVIAN M72 RPK ........ .908
RUSSIAN MILLED AK-47 ........ N/A
ROB. ARMS VEPR 7.62X39 ...... .908
POLISH U/F 7.62X39 ...... .908
POLISH TANTAL 5.45X39 ...... .908
MAK 90 7.62X39 U/F ....... .762
MILLED TYPE 56 7.62X39 .. ...... N/A
MUZZLE THREAD / THREAD LENGTH
SAIGA .223 ......................................... .............................. N/A
SAIGA .308 ............... .N/A
BULGARIAN 5.45 AK-74 M24 X 1.5 RH ....... .780
MAADI 7.62X39 .............. N/A
HUNGARIAN SA2000M 7.62X39 ......... N/A
HUNGARIAN AMD 65 M14 X 1 LH .......... .610
HUNGARIAN AMD 63 M14 X 1 LH .......... .570
ROMANIAN G M14 X 1 LH ............. .560
YUGOSLAVIAN AB2 M14 X 1 LH .......... .560
YUGOSLAVIAN VIRGIN KRINK M26 X 1.5 LH ........ .700
YUGOSLAVIAN M72 RPK M14 X 1 LH . ......... .580
RUSSIAN MILLED AK-47 M14 X 1 LH .......... .560
ROB. ARMS VEPR 7.62X39 NO THREADS .614 DIA ... .500
POLISH U/F 7.62X39 M14 X 1 LH ........ .590
POLISH TANTAL 5.45X39 M14 X 1 LH ...... 1.500
MAK 90 7.62X39 U/F THREADS TURNED OFF .530 DIA .... .640
MILLED TYPE 56 7.62X39 M14 X 1 LH .. ......570
BARREL DIA. FOR GAS BLOCK / G.B. OVERALL LENGTH
SAIGA .223 .................... 631 ..................................1.410
SAIGA .308 .............. .712 ...... 1.400
BULGARIAN 5.45 AK-74 .......592 . ...... 1.425
MAADI 7.62X39 ......... .592 ...... 1.060
HUNGARIAN SA2000M 7.62X39 ..591 ...... 1.050
HUNGARIAN AMD 65 .......592 ......1.060
HUNGARIAN AMD 63 ......592 . ......1.060
ROMANIAN G ..........592 ... .....1.065
YUGOSLAVIAN AB2 ......631 . ....1.540
YUGOSLAVIAN VIRGIN KRINK......591 ...... 1.665
YUGOSLAVIAN M72 RPK . .808 ...... 1.440
RUSSIAN MILLED AK-47 .. .631 ..... 1.450
ROB. ARMS VEPR 7.62X39 .790 .... .. 1.060
POLISH U/F 7.62X39 . .592 .. ... 1.060
POLISH TANTAL 5.45X39 .580 ...... 2.070
MAK 90 7.62X39 U/F .. .631 ... . ..1.350
MILLED TYPE 56 7.62X39 .631 . .. .. 1.450
GAS BLOCK DIMENSIONS
DISTANCE TO CENTER OF GAS HOLE FROM :
FR. OF GAS BLOCK / HOLE DIA. / R. OF GAS BLOCK
SAIGA .223 .990 .180 .. .418
SAIGA .308 975 .I80 .... .415
BULGARIAN 5.45 AK-74 ................................ .....
MAADI 7.62X39 ....................... ................
HUNGARIAN SA2000M 7.62X39 .............................................. ........
HUNGARIAN AMD 65 .....133 .....................................
HUNGARIAN AMD 63 ......149 .............................
ROMANIAN G ..... 149 ...............................
YUGOSLAVIAN AB2 .438 .......149 .....................1.100
YUGOSLAVIAN VIRGIN KRINK ................................. ........
YUGOSLAVIAN M72 RPK ..122 ...............................
RUSSIAN MILLED AK-47 .175 ................................
ROB. ARMS VEPR 7.62X39 ............................ ..........
POLISH U/F 7.62X39 ....149 ...........................
POLISH TANTAL 5.45X39 ............................ .........
MAK 90 7.62X39 U/F 175 ................................
MILLED TYPE 56 7.62X39 .. 172 .....
BARREL DIA. @ HANDGUARD RETAINER
SAIGA .223 ....... N/A
SAIGA .308 ........ N/A
BULGARIAN 5.45 AK-74 ..... .667
MAADI 7.62X39 ..... .670
HUNGARIAN SA2000M 7.62X39 ... .668
HUNGARIAN AMD 65 ...... .670
HUNGARIAN AMD 63 ...... .669
ROMANIAN G ........ .668
YUGOSLAVIAN AB2 ....... .688
YUGOSLAVIAN VIRGIN KRINK .......................................... .......... .689
YUGOSLAVIAN M72 RPK ..... .944
RUSSIAN MILLED AK-47 . .... .686
ROB. ARMS VEPR 7.62.............................................. ....................... N/A
POLISH U/F 7.62X39........................................... ........................... .668
POLISH TANTAL 5.45X39 .... .657
MAK 90 7.62X39 U/F .... .688
MILLED TYPE 56 7.62X39 .... .688
BARREL DIA. @ FSB / OVERALL LENGTH OF FSB
SAIGA .223 .... .594 .................2.330
SAIGA .308 . .....671 ............1.625
BULGARIAN 5.45 AK-74 ... .572 1.300
MAADI 7.62X39 ..... .572 .... .865
HUNGARIAN SA2000M 7.62X39 .572 ..... .850
HUNGARIAN AMD 65 .... .572 .....850
HUNGARIAN AMD 63 ..... .572 . 1.050
ROMANIAN G ....... .572 .................... .865
YUGOSLAVIAN AB2 ......592 ............. 1.235
YUGOSLAVIAN VIRGIN KRINK.......592 ....................1.665
YUGOSLAVIAN M72 RPK ... N/A ........ 1.130
RUSSIAN MILLED AK-47 ..... .591 ..... 1.170
ROB. ARMS VEPR 7.62X39 N/A 1.050
POLISH U/F 7.62X39 .572 .850
POLISH TANTAL 5.45X39 .562 ......................850
MAK 90 7.62X39 U/F ... .592 ........................1.165
MILLED TYPE 56 7.62X39 . .592 .......................1.450
GAS TUBE LENGTH
SAIGA .223 6.970
SAIGA .308 .. 6.950
BULGARIAN 5.45 AK-74 . 6.970
MAADI 7.62X39 6.970
HUNGARIAN SA2000M 7.62X39 5.740
HUNGARIAN AMD 65 . 5.770
HUNGARIAN AMD 63 ... 6.940
ROMANIAN G ... 6.970
YUGOSLAVIAN AB2 .. 7.540
YUGOSLAVIAN VIRGIN KRINK ... 6.060
YUGOSLAVIAN M72 RPK .. 7.530
RUSSIAN MILLED AK-47 6.970
ROB. ARMS VEPR 7.62X39 .. 6.970
POLISH U/F 7.62X39 ... 6.970
POLISH TANTAL 5.45X39 . 6.980
MAK 90 7.62X39 U/F ... 6.980
MILLED TYPE 56 7.62X39 .. 6.980
-
September 1st, 2010, 08:45 AM #4
Similar Threads
-
HK G3 kit build ?
By Shawn.L in forum GeneralReplies: 8Last Post: January 25th, 2011, 11:41 AM -
New Build
By Mr_Anderson in forum GeneralReplies: 5Last Post: July 26th, 2009, 05:06 PM -
AR Build #3, My "Ultimate" Build
By mythaeus in forum GeneralReplies: 24Last Post: July 12th, 2009, 11:34 PM -
my first ar build
By 338winmag in forum GeneralReplies: 44Last Post: May 17th, 2009, 08:18 PM -
AK build ?
By BFit70 in forum GeneralReplies: 13Last Post: November 18th, 2008, 03:07 PM
Bookmarks