Primary Weapons Systems was formed by firearm enthusiasts in 2008. Starting out by producing muzzle devices, they tested their compensators on all different types of rifles - from M4s to AK-47s. After using both styles of rifles in testing with high...

Build your rifle from a strong foundation! Boasting aesthetics, performance, and practical features, the OTR-15 receiver set is the start to your dream rifle. Hours of meticulous design, engineering, and testing went into crafting the OTR-15 Lower...

The OTR-15 lower is machined in house from billet 7075 aluminum with exacting tolerances, features and style in mind. Machined to match the ODIN Works billet upper, the OTR-15 stripped lower gives you unrivaled performance with eye catching lines...

The OTR-15 lower is machined in house from billet 7075 aluminum with features and style in mind. Machined to match the ODIN Works billet upper, the OTR-15 Receiver Set provides a best in class chassis. The Billet Upper Receiver has a sleek design "No...

Noveske Rifleworks is an American firearms company. They are headquartered in Grants Pass, Oregon and are known for their work with the AR-15 platform and the KeyMod system.MANUFACTURER: NoveskeMPN: 04000879MODEL: ChainsawAction:...

Utilizing the USC Upper Side Charging Receiver in combination with the LA-N15 Raven lower this perfectly matched billet receiver set is ideal for new rifle builds in multi calibers. Packed full of features including a broached internally flared magwell,...

Machined from certified 7075-T6 Aluminum and Type 3 Hardcoat Anodized Class2, Deep Black, the matched billet receiver sets are manufactured to the highest quality standards with excellent fit between parts.MANUFACTURER: LanTac USA LLCMPN:...

Now you can start your next AR build right with the GGP MKII Billet AR-15 Builder's Set! Includes a GGP MKII Billet Receiver Set, GGP MKII 15 inch Handguard. MKII Billet Receiver Set: The MKII Billet receiver set brings a new level of customizability...

The new MKII version of the GGP-P Series brings a new level of customizability never before seen in the rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the...

Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: LM-7075-GEN2-SMODEL:...

Exacting construction and rigorous durability are the standard for every weapon system that comes off the line at BCM. BCM Professional Grade Weaponry are hard use tools, built to perform in combat where unfailing performance is the only standard for men...

The UIC billet 7075-T6 AR-15 Pattern strip lower receiver is outfitted with their proprietary Ambidextrous magazine release, Ambidextrous bolt catch/ release lever, and their dimpled take down and pivot pins. Also includes an installed milspec magazine...