F&D Defense FD308

by Donald Sullivan | Aug 23, 2016 | F&D Defense | 0 comments

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F&D Defense FD308

F&D Defense FD308

F&D Defense FD308 -Through innovation and design, F&D has created the best AR10 in the world, the FD308. The FD308 offers the shooter every possible advantage to get the most from their rifle. From fit to finish, reliability of performance, and out of the box accuracy, the FD308 is the apex in AR refinement.

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F&D Defense FD308 Quick Specs:

308 Winchester, match chambered; 5/8″-24 muzzle threads
416 stainless Bartlein 5R cut-rifled barrel
Sub 1 MOA guarantee, Sub 3/8 MOA capable
18″ & 22″ barrel length configurations; 1:10 twist; lapped & polished bore
Exclusive precision action components
Patent pending high-efficiency gas-piston system
Non-reciprocating side charging handle
Matched Lower, Upper, Rail, Bolt and Extension
Geissele SSAe and High-Speed National Match Trigger options
Magpul 20 round Pmag magazine
See the Design & Technical pages for additional info
Lifetime Warranty
FD308-18″ Price: $3395
FD308-22″ Price: $3495

Factory-Load Range Report:

Independent Range Reporting done at Poco Loco Ranch, Boerne, Texas, 14Jan2012:

Model: FD308-17
Distance: 100yds
Setup: front bipod, rear bead-bag
Wind: calm-5 mph
Best Grouping Ammo: Black Hills 175gr BTHP Win Match, Factory New
Best Group: .175 MOA
Avg. Group: .443 MOA (testing various ammo makes & types)

Special thanks to Don Hardy and group!

Note: While F&D personnel regularly shoot sub-half MOA groups during testing and evaluation of production rifles, F&D only posts on this website pictures of groupings and test targets from independent sources.

Detailed Specs:

Upper & Lower Receivers

F&D Receivers are manufactured to the most specific set of tolerances in the defense industry; F&D utilizes tolerance stack-up engineering software and advanced inspection systems. F&D maintains pride in stating that it unequivocally manufactures the finest auto-loading rifle components in the world.

Material

F&D’s custom-supplied, hand-forged 7075-T652 is the highest strength aluminum alloy available; up to 20% increased tensile strength from non-forged 7075-T6. Receivers are match pinned for a perfect fit, not too tight or too loose.

Coating

Hardcoat Anodized IAW: MIL-A-8625, Type III Class 2

Operation

Flawlessly feeds from Magpul P20 magazines
20 MOA tilt on top rail adds scope range
Side charging handle, non-reciprocating

Barrel

308 Winchester Match chambered, 5R cut rifled by Bartlien Barrels
1:10 twist; 5/8″-24 threads
18″ length: effective range up to 800 yards
22″ length: effective range up to 1000 yards
Sub-MOA accuracy
416 Stainless, more uniform grain and density than mass-produced hammer-forged 4140 & 4150 alloy steels
Heat treated, lapped, and polished bore

Assembly

F&D’s rail system eliminates the barrel nut, allowing simplified and consistent barrel removal and reinstallation, while providing an extremely rigid connection to the upper receiver. F&D’s exclusive bolt-on interface maintains much higher rigidity than barrel-nut designs, and consolidates the absolute lowest and most compact rail-height available compared to any piston or direct impingement rifle system. This proprietary interface exerts 8200 lbs of axial force against the upper receiver, compared to 6700 lbs with standard barrel nuts utilized on most other AR-10 style rifles. Radial-clamping “quick-change” barrel systems exert little to no axial force against the upper receiver and reduces accuracy consistency. Axial barrel retaining force is one of the most significant structural contributors to accuracy and consistency on AR platform rifles.