The CAR Skinny Single-Insulated Carbine Handguard — also known as the "skinny" handguard — is the factory-pattern round polymer set used on early CAR-15 carbines and the USAF GAU-5 family. Made by DoubleStar, a long-time USGI contractor, these are the correct geometry for a clone-correct retro build where the oval double-insulated Colt M4 handguards would be wrong for the era.
The distinction matters: Colt's M4 handguards are oval and double-insulated; the skinny is round and single-insulated. If the build is a CAR-15, GAU-5, or any period carbine before the M4 oval profile became standard, this is the part. DoubleStar and Ace have been supplying USGI-pattern polymer furniture for decades, and the quality shows in the fit around the delta ring and M4 cap.
We keep these skinny handguards on the shelf because every retro CAR-15 and GAU-5 build needs them. Order yours today — we'll get it out the door fast.