The PWS MK111 Compound .223 Wylde SBR pairs the robust Mod 1 upper, with a full M-LOK handguard and forward assist, with the refined Mod 2 ambidextrous lower. It uses the PWS Long Stroke Piston System with adjustable gas settings, and the 11.85-inch .223 Wylde barrel handles both .223 Remington and 5.56mm NATO. The hybrid design gives the modularity and durability PWS rifles are known for. The complete rifle weighs 6.2 pounds unloaded. It is built for shooters who want a short piston-driven AR that runs suppressed or unsuppressed.

Key Specifications

• The chambering is .223 Wylde, which accommodates both .223 Remington and 5.56mm NATO.
• Barrel length is 11.85 inches with a 1:8 twist, a versatile rate for common 5.56 loads.
• The gas system is the PWS Long Stroke Piston with adjustable gas settings, built for reliability and reduced fouling.
• The handguard is a full-length 11.05-inch M-LOK with a slim 1.7-inch width, for maximum accessory mounting.
• Weight is 6.2 pounds unloaded, light enough to stay maneuverable.

Frequently Asked Questions

What is a Compound rifle? The Compound combines the Mod 1 upper, which has a forward assist and a full M-LOK handguard, with the Mod 2 ambidextrous lower.

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 short-barreled rifles. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply. Taking an SBR across state lines still requires an approved ATF Form 5320.20.

Buy the PWS MK111 Compound .223 Wylde SBR, 11.85-Inch Barrel

As of October 9, 2026, this short-barreled rifle 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. The Mod 1 upper and Mod 2 lower combine into a piston-driven SBR with ambidextrous controls. Order through PWS‘s short-barreled rifles lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.