Dinzagarms.com

'74 Style Brake

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# 74MB5028 - $40 - For 1/2-28 RH barrels ** - common for most AR's and some AK's with 0.500" to 0.520" barrel o.d.'s. Threaded 5/8" deep.

# 74MB1410 - $30 - For 14x1 LH barrels - common for most AK's with 0.551" to 0.569" barrel o.d.'s. Threaded 5/8" deep.

# 74MB14EXT - $40 - For 14x1 LH barrels w/1" of muzzle - common for 7.62x39 Saiga, 5.45x39 Saiga and some newer .223 Saigas with 0.551" to 0.569" barrel o.d.'s. Threaded 1" deep. You must cut the barrel shroud back flush with the front sight tower and thread the barrel.

# 74MB14SAIGA - $50 - For 14x1 LH barrels w/1" of muzzle - common for 7.62x39 Saiga, 5.45x39 Saiga and some newer .223 Saigas with 0.551" to 0.569" barrel o.d.'s. These are threaded 1" deep then bored in the back to clear partially cut back FSB shrouds. You must cut the barrel shroud back to within 3/8" of the front sight tower and thread the barrel.

# 74MB5624RH - $45 - For 9/16-24 RH barrels - Threaded 5/8" deep.

# 74MB5624LH - $45 - For 9/16-24 LH barrels - Threaded 5/8" deep.

# 74MB1510 - $35 - For 15x1 RH barrels - common for .223 Saiga with 0.591" barrel under FSB. Threaded 1" deep. You must cut the barrel shroud back flush with the front sight tower and thread the barrel.

# 74MB15SAIGA - $45 - For 15x1 RH threaded barrels w/1" of muzzle - common for older .223 Saigas with 0.591" barrel o.d.'s. Threaded 1" deep then bored in the back to clear partially cut back FSB shrouds. You must cut the barrel shroud back to within 3/8" of the front sight tower and thread the barrel.

# 74MB6324 - $35 - For 5/8-24 RH barrels - common for .308 Saiga with 0.631" barrel under FSB. Threaded 1" deep internally.

# 74MB1710 - $35 - For 17x1 RH barrels - common for .308 Saiga with 0.671" barrel under FSB or cut back barrels. Threaded 1" deep internally.

This is a '74 style muzzle brake. These are all safe for calibers up to 0.308". The Saiga 7.62x39 and .223 rifles have 1" of barrel out in front of the front sight block, so this brake has been threaded deeper to account for this. Normally AK barrels stick out 9/16" in front of the FSB tower and the brakes are threaded 5/8" to 3/4" deep inside. **note: the 1/2-28 & reg 14x1LH are not threaded 1.00" deep, only standard depth.

Also, the Saiga .308 barrels have a taper on the end and most brakes/hiders will not clear it. All of these brakes will.

These are marked "U.S.A." or "Made In USA" and count as a compliance part.

I recommend wrapping the barrel threads with teflon tape to index the brake. It's cheap and isn't affected by heat from normal firing.