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Technical Data Sheet
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99329 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

LOCK,SHOULDER GUN STOCK BUTT PLA. Key specifications include part_name_assigned_by_controlling_agency: M4 CARBINE FOLDING STOCK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1005-01-042-9820, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
99329
NSN: 1005-01-042-9820
FSC: 1005
CAGE: 7C9Y9 — LAW TACTICAL LLC (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyM4 CARBINE FOLDING STOCK
NSN1005-01-042-9820
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,SHOULDER GUN STOCK BUTT PLA TITLE COMPONENT PN 99329 MFR LOCK,SHOULDER GUN STOC
KEY FEATURES
•
MODEL NUMBER: GUU-5/P
•
OPERATION METHOD: GAS
•
SIZE DESIGNATION: 5.56 MILLIMETER MM
•
FEED METHOD: MAGAZINE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESFOLDING BUTTSTOCK, 10.3 INCH BARREL; DISCREET WEAPON GUU-5P CARBINE IN
MODEL NUMBERGUU-5/P
OPERATION METHODGAS
SIZE DESIGNATION5.56 MILLIMETER MM
FEED METHODMAGAZINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
61010Interchangeable
interchangeable cross-reference
interchangeable
11524AInterchangeable
interchangeable cross-reference
interchangeable
RJ-5076Interchangeable
interchangeable cross-reference
interchangeable
57B126-1-16GInterchangeable
interchangeable cross-reference
interchangeable
C233275-4Interchangeable
interchangeable cross-reference
interchangeable
1131794Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99329?
99329 is a LOCK,SHOULDER GUN STOCK BUTT PLA.
What parts can replace 99329?
There are 11 known substitutes for 99329: 61010, 11524A, RJ-5076 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 99329?
99329 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1005-01-042-9820. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026