UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 1)*

Compx International, Inc.
--------------------------------------------------------------------------------
(Name of Issuer)

Common Stock
--------------------------------------------------------------------------------
(Title of Class of Securities)

20563P-10-1 
--------------------------------------------------------
(CUSIP Number)

March 31, 2001
--------------------------------------------------------------------------------
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

/X/       Rule 13d-1(b)
/ /       Rule 13d-1(c)
/ /       Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting 
person's initial filing on this form with respect to the subject class of 
securities, and for any subsequent amendment containing information which 
would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be 
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange 
Act of 1934 ("Act") or otherwise subject to the liabilities of that section 
of the Act but shall be subject to all other provisions of the Act (however, 
see the Notes).

Page 1
of 8 Pages

SCHEDULE 13G

CUSIP NO. 20563P-10-1                                         Page 2 of 8 Pages

-------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Smith Barney Fund Management LLC
-------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a)  / /
(b)  / /
-------------------------------------------------------------------------------
(3) SEC USE ONLY

-------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION                              Delaware

-------------------------------------------------------------------------------
NUMBER OF           (5) SOLE VOTING POWER                              0

SHARES                                                                
----------------------------------------------------
BENEFICIALLY          (6) SHARED VOTING POWER                     746,250*

OWNED BY
----------------------------------------------------
EACH               (7) SOLE DISPOSITIVE POWER                         0

REPORTING                                                               
----------------------------------------------------
PERSON              (8) SHARED DISPOSITIVE POWER                746,250*

WITH:
-------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON       746,250*

-------------------------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE 
INSTRUCTIONS)  / /

-------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)                   14.6%*

-------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)                             IA

-------------------------------------------------------------------------------
*Includes shares for which the reporting person disclaims beneficial 
ownership.  See item 4(a).

SCHEDULE 13G

CUSIP NO. 20563P-10-1                                         Page 3 of 8 Pages

-------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Salomon Smith Barney Holdings Inc.
-------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a)  / /
(b)  / /
-------------------------------------------------------------------------------
(3) SEC USE ONLY

-------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION                              New York

-------------------------------------------------------------------------------
NUMBER OF           (5) SOLE VOTING POWER                              0

SHARES
----------------------------------------------------
BENEFICIALLY          (6) SHARED VOTING POWER                     746,250*

OWNED BY
----------------------------------------------------
EACH               (7) SOLE DISPOSITIVE POWER                         0

REPORTING
----------------------------------------------------
PERSON              (8) SHARED DISPOSITIVE POWER                746,250*

WITH:
-------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON       746,250*

-------------------------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE 
INSTRUCTIONS)  / /

-------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)                   14.6%*

-------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)                             HC

-------------------------------------------------------------------------------
* Includes shares for which the reporting person disclaims beneficial 
ownership. See Item 4(a).

SCHEDULE 13G

CUSIP NO. 20563P-10-1                                         Page 4 of 8 Pages

-------------------------------------------------------------------------------
(1) NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Citigroup Inc.
-------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a)  / /
(b)  / /
-------------------------------------------------------------------------------
(3) SEC USE ONLY

-------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION                              Delaware

-------------------------------------------------------------------------------
NUMBER OF           (5) SOLE VOTING POWER                              0

SHARES                                                                
----------------------------------------------------
BENEFICIALLY          (6) SHARED VOTING POWER                     746,250*
**
OWNED BY
----------------------------------------------------
EACH               (7) SOLE DISPOSITIVE POWER                         0

REPORTING                                                               
----------------------------------------------------
PERSON              (8) SHARED DISPOSITIVE POWER                746,250*
**
WITH:
-------------------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON       746,250*
**

-------------------------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE 
INSTRUCTIONS)  / /

-------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)                   14.6%*
**

-------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)                             HC

-------------------------------------------------------------------------------
*  Includes shares for which the reporting person disclaims beneficial 
ownership. See Item 4(a).
** Includes shares held by the other reporting persons.

Item 1(a).     Name of Issuer:

Compx International Inc.

Item 1(b).     Address of Issuer's Principal Executive Offices:

5430 LBJ Freeway, Suite 1700
Dallas, Texas, 75240

Item 2(a).     Name of Person Filing:

Smith Barney Fund Management LLC ("SBFM") (formerly known as 
SSB Citi Fund Managment LLC)
Salomon Smith Barney Holdings Inc. ("SSB Holdings")
Citigroup Inc. ("Citigroup")

Item 2(b).     Address or Principal Office or, if none, Residence:

The address of the principal office of each of SBFM and
SSB Holdings is:

388 Greenwich Street
New York, NY 10013

The address of the principal office of Citigroup is:

399 Park Avenue
New York, NY 10043

Item 2(c).     Citizenship or Place of Organization:

SSB Holdings is a New York Corporation.

SBFM and Citigroup are Delaware corporations.

Item 2(d).     Title of Class of Securities:

Common Stock

Item 2(e).     Cusip Number: 

20563P-10-1

Page 5
of 8 Pages

Item 3.      If this Statement is Filed Pursuant to Sections 240.13d-1(b) or
240.13d-2(b) or (c), Check Whether the Person Filing is a(n):

(a)  [ ] Broker or dealer registered under section 15 of the 
Act (15 U.S.C. 78o);

(b)  [ ] Bank as defined in section 3(a)(6) of the Act 
(15 U.S.C. 78c);

(c)  [ ] Insurance company as defined in section 3(a)(19) of 
the Act (15 U.S.C. 78c);

(d)  [ ] Investment company registered under Section 8 of the 
Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)  [X] Investment adviser in accordance with Section
240.13d-1(b)(1)(ii)(E);

(f)  [ ] Employee benefit plan or endowment fund in accordance 
with Section 240.13d-1(b)(1)(ii)(F);

(g)  [X] Parent holding company or control person in accordance
with Section  240.13d-1(b)(1)(ii)(G);

(h)  [ ] Savings association as defined in Section 3(b) of the 
Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)  [ ] Church plan that is excluded from the definition of an 
investment company under Section 3(c)(14) of the 
Investment Company Act of 1940 (15 U.S.C. 80a-3)

(j)  [ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

Item 4.   Ownership. (as of March 31, 2001)

(a)  Amount beneficially owned: See item 9 of cover pages

(Includes shares for which the reporting person disclaims
beneficial ownership.)

(b)  Percent of Class: See item 11 of cover pages

(c)  Number of shares as to which the person has:

(i)   sole power to vote or to direct the vote:

(ii)  shared power to vote or to direct the vote:

(iii) sole power to dispose or to direct the disposition of:

(iv)  shared power to dispose or to direct the disposition of:

See Items 5-8 of cover pages

Page 6
of 8 Pages

Item 5.   Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the 
date hereof the reporting person has ceased to be the beneficial owner
of more than five percent of the class of securities, check the
following [  ].

Item 6.   Ownership of More Than Five Percent on Behalf of Another Person.

Not Applicable.

Item 7.   Identification and Classification of the Subsidiary which Acquired 
the Security being Reported on by the Parent Holding Company.

SSB Holdings is the sole stockholder of SBFM. Citigroup is 
the sole stockholder of SSB Holdings.

Item 8.   Identification and Classification of Members of the Group.

Not Applicable.

Item 9.   Notice of Dissolution of Group. 

Not Applicable.

Page 7
of 8 Pages

Item 10.  Certification.

By signing below I certify that, to the best of my knowledge and 
belief, the securities referred to above were acquired and are held in the 
ordinary course of business and were not acquired and are not held for the 
purpose of or with the effect of changing or influencing the control of the 
issuer of the securities and were not acquired and are not held in connection 
with or as a participant in any transaction having that purpose or effect.

SIGNATURE.

After reasonable inquiry and to the best of my knowledge and 
belief, I certify that the information set forth in this statement is true, 
complete and correct.

Dated: April 6, 2001

SMITH BARNEY FUND MANAGEMENT LLC

By: /s/ Christina T. Sydor
--------------------------------------------
Name:  Christina T. Sydor
Title:  Secretary

SALOMON SMITH BARNEY HOLDINGS INC.

By: /s/ Howard M. Darmstadter
--------------------------------------------
Name:  Howard M. Darmstadter
Title:  Assistant Secretary

CITIGROUP INC.

By: /s/ Joseph B. Wollard
--------------------------------------------
Name:  Joseph B. Wollard
Title:  Assistant Secretary

Page 8
of 8 Pages

EXHIBIT INDEX TO SCHEDULE 13G
-----------------------------

EXHIBIT 1
---------

Agreement among SSB Citi Fund, SSB Holdings and Citigroup as to joint filing of
Schedule 13G

EXHIBIT 1
---------

AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G
--------------------------------------------

Each of the undersigned hereby affirms that it is individually eligible to use
Schedule 13G, and agrees that this Schedule 13G is filed on its behalf.

Date: April 6, 2001

SMITH BARNEY FUND MANAGEMENT LLC

By: /s/ Christina T. Sydor
--------------------------------------------
Name:  Christina T. Sydor
Title:  Secretary

SALOMON SMITH BARNEY HOLDINGS INC.

By: /s/ Howard M. Darmstadter
--------------------------------------------
Name:  Howard M. Darmstadter
Title:  Assistant Secretary

CITIGROUP INC.

By: /s/ Joseph B. Wollard
--------------------------------------------
Name:  Joseph B. Wollard
Title: Assistant Secretary