The Silent Steel USA Compact Streamer 5.56 suppressor packs the Streamer’s FLOW-IQ technology into a 5.9-inch body, set up with a 1.375×24 HUB rear thread and an Armor Black finish (Silent Steel USA part no. CSTR-556-BLK-HUB-1_3/8). Silent Steel USA describes it as a general-purpose tactical compact suppressor with a full-auto rating. Its baffle-less flow module means no gas adjustments are needed, according to the maker, and blowback stays low on a semi-automatic AR. The shorter body keeps a carbine balanced rather than front-heavy. It fits the shooter who wants one 5.56 can that handles both range work and close-quarters use.

Key Specifications

• The caliber rating is 5.56mm, matched to AR-15 and other 5.56 NATO rifles.
• Overall length is 5.9 inches, the middle size in the Streamer family between the Micro and the full-size Streamer.
• Diameter is 1.6 inches, shared across the Streamer line.
• The body is 303/304 stainless steel, the material Silent Steel USA uses across the Streamer line for heat and wear resistance.
• The rear interface is HUB-compatible 1.375×24 threads, which accept the maker’s direct thread and BoltLok QD mounting options, with or without a flash hider.
• The flow module is baffle-less FLOW-IQ, which Silent Steel USA says needs no gas adjustments on the host rifle.
• Silent Steel USA rates the Compact Streamer full auto, a general-purpose tactical compact design.

Frequently Asked Questions

Why choose the Compact Streamer over the full-size Streamer? Balance and handling. The Compact Streamer is 5.9 inches long against 7.6 inches for the full-size Streamer, so a 5.56 carbine stays shorter and handier while keeping the same FLOW-IQ technology.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the Silent Steel USA Compact Streamer 5.56 Suppressor, HUB Mount, Armor Black

A compact 5.56 can that keeps the rifle balanced earns its spot on a do-everything carbine. As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Silent Steel USA‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.