(GunReports.com) — Wilson Combat has introduced the T.R.I.M. AR-10-D (Tactical Rail Interface, Modular) AR-10 rail, which the company touts as the lightest, strongest and most versatile compact free-floating rail systems on the market. It’s available in 12-inch ($350) and 14-inch ($360) sizes. It is designed for AR-10 pattern rifles and clones with 1-7/16-18 inch threaded receivers, such as the DPMS/SR-25.
Machined of 6005A-T5 aircraft aluminum with a Mil-Spec hard anodized finish, the T.R.I.M. rail handguard interface has a nitrocarburized 4130 steel barrel attachment nut reduces heat transfer and the ergonomic handguard design offers a sleek, non-abrasive platform for comfortable dynamic shooting.
The Wilson Combat T.R.I.M. rail interface solves multiple installation issues our gunsmiths have encountered with other rail systems in over a decade of building thousands of the company’s custom AR rifles. The entire T.R.I.M. interface can be easily end-user installed in five minutes with common hand tools and can be quickly removed or replaced with a different length rail interface in the field with nothing more than a hex key.
The T.R.I.M. attachment points enable the end-user to quickly position the supplied modular Picatinny rail panel on the attached interface in pre-specified locations. A generous inside diameter of 1.69″ accepts low profile gas blocks. Integral push-button Q.D. sling swivel attachment points are located on both sides of the T.R.I.M. for the ultimate in sling mounting versatility.
The T.R.I.M. AR-10-D is designed to fit .308 AR pattern rifles with a 1-7/16-18” receiver thread (DPMS .30 Cal pattern) and “High Profile” AR-10/SR-25/ LR308 rifles of the pre-2009 “DPMS” /Knights SR-25 pattern.
In August 2009 DPMS changed the height of the top rail on the LR308 upper receiver. To properly match your rifle’s upper receiver rail to the full-length T.R.I.M. AR-10-D top rail, determine your rifle’s manufacture date and receiver height prior to purchase.
A “High-Profile” /SR-25/DPMS receiver will measure approx .210” or 3/16″ thick from the top of the receiver rail to the charging handle cut out. A low-profile DPMS receiver will measure .125” or 1/8” thick.
This rail will attach to a low-profile receiver, but the top rail of the handguard will not match the receiver.Most aftermarket .308 AR receivers are “High Profile”. The device is not compatible with Armalite brand rifles.
