Dark Storm Industries DS-15 AR-15 5.56x45mm NATO Upper and Lower Receiver Parts Builder Box for Standard or Fixed Magazine Typhoon Rifle Anodized. 56 SOCOM Threaded 1:9 Nitrite Barrel Firestorm Compensator and Crush Washer LOWER PARTS Lower Parts Kit Billet Ambidextrous 90 Degree Safety Selector DS-15 3.0 oz Buffer Kit Ambidextrous QD Sling Plate Steel Castle Nut Hogue Adjustable Stock Black Hogue Pistol Grip Black made in specialized factories Specifications for Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO Builder Box: Manufacturer: Dark Storm Industries Color: Black Finish: Anodized Caliber: 5.56x45mm NATO Gun Model: AR-15 Package Contents: Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO Builder Box What firearm models does the manufacturer say Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO Builder Box is compatible with? The manufacturer suggests that Dark Storm Industries DS-15 Typhoon AR-15 5.56x45mm NATO Builder Box is compatible with AR-15Dark Storm Industries DSI-DS15-TYP-BBT5-BLK: DS-15 AR-15 5.56x45mm NATO Upper and Lower Receiver Parts Builder Box for Standard or Fixed Magazine Typhoon Rifle Anodized Black