SIX8™ SPR | SPECIAL PURPOSE RIFLE UPPER RECEIVER
The LWRCI™ SIX8™ SPR | Special Purpose Rifle Upper Receiver is constructed using the highest quality materials. Built on our patented self-regulating short-stroke gas piston system, machined from materials that belong to the superalloy family of steel alloys most often used in aerospace, LWRCI™ raises the bar on reliability and ease of maintenance- delivering the highest level of performance.
SIX8™ SPR Uppers with LWRCI Monoforge™ design includes an integrated rail-base that is stronger and lighter. The 12” user configurable rail system with individual rail sections allow the shooter to place accessory rails where they are needed while maintaining its low profile ergonomic fit and function.
Our SIX8™ SPR Uppers proprietary design has been optimized for the 6.8 SPC II cartridge. The one-piece LWRCI™ Advanced Combat Bolt in 6.8 features a fully supported bolt face, dual extractor springs, the ‘Claw’ extractor provides 20% more purchase on the case rim for positive extraction every time, a bolt face groove to collect dirt and brass shaving, and a Nickel Boron coating for wear resistance and permanent lubricity.
Our SIX8™ SPR Upper uses LWRCI™ manufactured- NiCorr treated cold Hammer Forged heavy barrel. The LWRCI™ Gas-piston system can be accessed quickly by loosening two thumb screws and removing the top rail section. SIX8™ SPR Uppers also include an LWRCI™ High Efficiency 4 Prong Flash Hider. For the 14.7” Models- LWRCI™ High Efficiency Flash Hiders are PERMANENTLY ATTACHED. LIMITED QUANTITIES- ALLOW 3-4 weeks for delivery. Each SIX8™ SPR Upper Receiver ships complete with LWRCI™ Bolt Carrier Group, Ambidextrous Charging Handle, H2 Buffer and Carbine Length Action Spring.
SIX8 SPR FEATURES:
- LWRCI™ PROPRIETARY UPPER RECEIVER OPTIMIZED FOR THE 6.8 SPC II CARTRIDGE
- LWRCI™ SHORT STROKE GAS PISTON OPERATING SYSTEM
- LWRCI™ COLD HAMMER FORGED NICORR-TREATED HEAVY BARREL
- LWRCI™ BIRDCAGE (A2) FLASH HIDER
- LWRCI™ SKIRMISH BACK UP IRON SIGHTS
- LWRCI™ AMBIDEXTROUS SLING MOUNT
- LWRCI™ 12"" USER CONFIGURABLE RAIL SYSTEM
- LWRCI™ AMBIDEXTROUS CHARGING HANDLE
- COMES WITH PICITANY RAIL SECTIONS FOR ATTACHMENTS
NOTE: SIX8 SPR UPPERS ARE ONLY COMPATIBLE WITH LWRCI SIX8 LOWER RECEIVERS.
NFA DISCLAIMER: In purchase of this item, it is to be recognized that all local, state and federal laws are in compliance with all regulatory requirements. It is the buyer’s responsibility to make sure all requirements are met by the NFA prior to purchasing an upper with a barrel of less than 16” in length.