Description
The NBS Slick Side Billet Upper Receiver is a quality, American made billet upper featuring a unique design that sets it apart from traditional forged upper receivers. Manufactured to exacting standards on five axis CNC machines from a solid block of aircraft grade aluminum, this stripped upper not only looks good… it is built to last.
M4 Feedramps
Compatible with mil-spec forged lower receivers and most billet lower receivers
.250 takedown / pivot pin holes
No forward assist
Designed to be used with or without a port door / dust cover (will need to remove c-clip from dust cover pin before assembly)
Weight: 7.1oz
*Does not come with anti-rotation pin for use with NBS Free Float M-LOK Handguard and Dirty Bird Gen 2 Handguards. Anti-rotation pin can be found below:
98381A470 – NBS/Dirty Bird Gen 2 Handguard Anti-Rotation Pin – AR15Discounts
***UPPER MAY NOT BE COMPATIBLE WITH HANDGUARDS THAT FEATURE ANTI-ROTATION TABS.
Made in the USA
Backed by the NBS Limited Lifetime Warranty
