This is a Hera USA Stock, model 12.50CA.
The Hera USA CQR stock or Close Quarters Rifle stock is an upgraded stock for your DPMS LR-308 Gen 1 pattern rifle. The CQR is a lightweight compact improvement over the traditional fixed stock and the integral angled grip provides better control and accuracy. Featuring a low profile ambidextrous design" two web sling attachment points and two quick detach sling swivel anchor points" the CQR Stock is everything you need to turn your DPMS LR-308 platform firearm into a highly effective CQB weapon.
Features:
Fits DPMS LR-308 AR-10 Gen 1 lower
Featureless fixed buttstock
Integrated angled pistol grip and fixed stock