Guntec's low-profile steel gas block fits .625-diameter barrels and delivers reliable performance for AR-platform rifles with a compact design that won't interfere with optics.
The Guntec low-profile gas block represents a straightforward approach to one of the AR-platform rifle's most critical components. This steel gas block is engineered to work with barrels featuring a .625-inch diameter, a common specification on modern AR rifles.
A quality gas block is fundamental to your rifle's function. It directs expanding gases from the barrel into the bolt carrier group, cycling the action and chambering the next round. Guntec's low-profile design keeps your sight picture unobstructed while maintaining the mechanical reliability your rifle demands.
Whether you're building a precision rifle, a duty weapon, or a practical shooter, this gas block delivers the performance you need without unnecessary bulk.