How do you write an enlisted Army MOS with your ASI and/or SQI?

SGT (Join to see) - I actually did that. I've read the reg and it doesn't actually tell you how to write it out. It does tell you what each part, or code means. But thanks for your input.

SGT Javier Silva - Negative. It explains exactly how to write it out. See below, AR611-1, ch6-6. It explains, by each character of the full MOS, what it means, and where to reference explanations for each. Respectfully, how much more clear can it be?

“–6. Military occupational specialty code
a. The MOSC provides more specific occupational identity than the MOS. It is used—
(1) To classify enlisted soldiers.
(2) To classify enlisted positions in requirement and authorization documents.
(3) To provide detailed occupational identity in records, orders, reports, management systems and data bases.
(4) As a basis for training, evaluation, promotion and other re- lated management subsystem development.
b. The MOSC contains nine characters and provides more spe- cific occupational identity than the MOS. The MOSC is used to classify both personnel and positions in authorization documents. The elements of the MOSC include:
(1) First three characters. This is a three-character numeric-alpha combination that identifies the MOS without regard to level of skill. The first two characters relate to the MOS and do not identify the CMF of which the MOS is part of.
(2) Fourth character. This is a number. With the first three char- acters, it shows skill and grade level in the MOS. Authorized skill levels and the characters that identify them are described in DA Pam 611–21.
(3) Fifth character. This may be a letter or a number that reflects SQI common to a number of positions and MOS. DA Pam 611– 21 describes authorized SQI codes. The letter “O ” will always be inserted as the fifth character when a position does not require special qualifications or an individual is not qualified for award of an SQI.
(4) Sixth and seventh characters. These may be alpha-numeric or numeric-alpha characters that represent ASIs. ASI codes are used to identify skills closely associated with, but in addition to, those in the basic MOS. The numbers “00” will be inserted as the sixth and seventh characters when a position does not require an ASI or a soldier is not qualified for award of an ASI. ASI codes will be included in permanent change of station orders, records and reports, as required. DA Pam 611–21 describes authorized ASI codes to include descriptions of positions, qualifications and restrictions.
(5) Eighth and ninth characters. These are two-letter combina- tions that identify foreign language requirements and qualifications provided in AR 611–6. Orders, records and reports will use the letters “OO” when foreign language is not required or a soldier is not foreign language qualified.“

SFC Ralph E Kelley What's a GR2?

SGT Javier Silva - SQI of G = Ranger, ASI of R2 = FIST\V

Check this out.. I hope it helps
NOTE: For enlisted Soldier requests, please indicate the requested full 9alpha-numeric MOS Code (MOSC). 9 alphanumeric MOSC = 3 MOS + 1 Skill level + 1 SQI + 2 ASI + 2 Language Code. MOSC has 3 spaces for the MOS, one space for skill level, one space for SQI, two spaces for ASI and two spaces for Language. Each MOS can only have ONE of each associated with that MOS. If the Soldier does NOT have any additional skill, place the appropriate O or 0 in that spot.
Example A: 42A 5 O 00 OO '5' skill level with no additional skills
Example B: 42A 4 8 F5 QB '4' skill level, '8' ASI, 'F5' SQI, 'QB' language

Enlisted personnel
The MOS code (MOSC), consisting of nine characters, provides more information than a soldier's MOS. It is used by automated management systems and reports. The MOSC is used with active and reserve records, reports, authorization documents, and other personnel management systems.

The elements of the MOSC are as follows:

First three characters: the MOS. The first two characters are always numbers, but the third character is always a letter. The two-digit number is usually (but not always) synonymous with the career management field (CMF). For example, CMF 11 covers infantry, so MOS 11B is "rifle infantryman". Among the letters, Z is reserved for "senior sergeant" (E-8), such that 11Z is "senior infantry sergeant".
The fourth character of the MOSC represents skill level (commensurate with rank and grade):
"0" is used to identify personnel undergoing training for award of a primary MOS (PMOS).
"1" identifies a private (PVT) through specialist (SPC/pay grade E-4) or corporal (CPL/also pay grade E-4)
"2" identifies a sergeant (SGT/pay grade E-5)
"3" identifies a staff sergeant (SSG/pay grade E-6)
"4" identifies a sergeant first class (SFC/pay grade E-7)
"5" identifies a master sergeant (MSG) or first sergeant (1SG) (see E-8, below)
"6" identifies a sergeant major (SGM/pay grade E-9) or command sergeant major (CSM/pay grade E-9) (as of 1 April 2011) [2]
Fifth character: a letter or number and a special qualification identifier (SQI). It may be associated with any MOS unless otherwise specified. Only Enlisted Soldiers without any special SQI are assigned the SQI "O" (oscar), often confused with a zero. Warrant Officers without any special SQI are assigned the SQI "0" zero.[3]
Sixth and seventh characters: an additional skill identifier (ASI). They are an alphanumeric combination and may only be associated with specified MOSs, although in practice some ASIs are available to every MOS (e.g. ASI P5 for "master fitness trainer"). Soldiers without any ASIs are assigned the default ASI of "mk lmk00" (zero-zero).[3]
Eighth and ninth characters: two-letter requirements and qualifications which are a language identification code (LIC). Soldiers without a language skill are assigned the default LIC "YY" (Yankee-Yankee).[3] Language identification codes can be found in AR 611-6.

Section IV Remarks on 4187
If SQI:
1. Request the following MOS action be taken (nine character MOS):
Award PMOS: 92Y4O2SOO SMOS: 13B4O2SOO AMOS: 92A4O2SOO
Withdraw PMOS: 92Y4O SMOS: 13B4O00OO AMOS: 92A4O00OO
2. The SQI requested is IAW the standards of DA PAM 611-21, Chapter 12 and will be awarded in order of precedence IAW
AR 614-200, para 3-14.
3. Attached is a Certificate of Completion and DA Form 1059 to confirm completion of an approved Course of Instruction.
My current address/telephone is:

IF ASI:
1. Request the following MOS action be taken IAW AR 614-200, para 3-14 (nine character MOS):
Award PMOS: 92Y4800OO SMOS: 13B4800OO AMOS: 92A4800OO
Withdraw PMOS: 92Y4O00OO SMOS: 13B4O00OO AMOS: 92A4O00OO
2. The ASI requested is IAW the standards of DA PAM 611-21, Chapter 12.
3. Attached is a Certificate of Completion and DA Form 1059 to confirm completion of an approved Course of Instruction.

My current address/telephone is:

Reservist don't have an ERB, like AD does. :D

Reservists absolutely do have an ERB. The SM is required to Validate it yearly and then have their S1 certify it.
https://selfservice.rcms.usar.army.mil
Log in with your CAC, select My Record Brief, View and Validate if correct. if not correct, work with your S1/HR person to get it updated.

SGT Javier Silva - Yes we absolutely do have ARBs. We've always have.