SIG SAUER 5.56 TAPER CAP 1/2×28
SIG SAUER 5.56 TAPER CAP adapts compatible 1/2×28 tapered barrels to a 90-degree shoulder for proper muzzle device and suppressor fit.
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Description
SIG SAUER 5.56 TAPER CAP Features
SIG SAUER 5.56 TAPER CAP is designed to help compatible rifles achieve a proper muzzle device mounting surface on tapered SIG barrels. It fits 5.56 NATO barrels with 1/2x28 threads and is intended for current SIG Sauer platforms such as the MCX and M400. Because it converts the tapered shoulder to a traditional 90-degree shoulder, it plays an important role in correct muzzle device and suppressor setup on compatible hosts.
This compact part focuses on function rather than added bulk. It installs on compatible tapered barrels to create a more conventional shoulder interface, which helps support proper alignment during muzzle device installation. In addition, it is a practical choice for shooters who want to stay within the SIG ecosystem while using standard 1/2x28 muzzle accessories on a compatible 5.56 platform. Its simple design makes it a useful accessory for range rifles, training carbines, and suppressor-ready builds that rely on correct fit at the muzzle.
Specifications
Manufacturer: SIG SAUER
Model: 5.56 Taper Cap
Thread Pattern: 1/2x28
Caliber Compatibility: 5.56 NATO
Compatibility: Current SIG SAUER MCX and M400 tapered barrel applications
Mounting Role: Converts tapered shoulder to a traditional 90-degree shoulder
Additional Notable Specs: Designed for proper muzzle device interface on compatible tapered-barrel rifles
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