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The Range
Rifle & Shotgun Discussion
OSA - 17 Design Lowers - Completed Builds Thread
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<blockquote data-quote="KOPBET" data-source="post: 3577822" data-attributes="member: 4153"><p>Well, I had a PSA w/10.5in barrel upper on my IFLR pistol, but as an afterthought I decided I wanted to be able to be able to add (and imbed) my suppressor to this gun. Unfortunately, the ID of the PSA handguard is only about 1.3 in. The suppressor OD is about 1.5 in., so no bueno. So I bought a Griffin Armament 12.5 in free float handguard with a 1.7 in ID to replace the original PSA handguard (unknown mfr). The proprietary barrel nut on the PSA upper was obviously installed by King Kong and quite difficult to get off. I didn't have a 1-1/8 crows foot wrench, if I had maybe it would have been easier, but as it was I could lift my bench off the floor and twist it from side to side with the albeit insufficient torque was applying. To make a long story short, I finally was able to remove the original barrel nut and replace it with the nut included with the new handguard, get it torqued (required about 50 lb/ft to get the gas tube channel alligned), and the new handguard put on. All was not lost with the PSA barrel nut and handguard though, I put them on another Stag Arms AR that had a fixed handguard with an A2 FSB.</p><p></p><p> [ATTACH=full]206265[/ATTACH] [ATTACH=full]206264[/ATTACH]</p><p></p><p>Original handguard was this one</p><p></p><p>[ATTACH=full]206267[/ATTACH]</p><p></p><p>Disassembled Stag Arms rifle before adding PSA free float handguard.</p><p></p><p>[ATTACH=full]206269[/ATTACH]</p><p></p><p>Put back together along side the 17 Design IFLR. Still need to get a MI A2 front sight but that's another $90 or so, I'm in no hurry!</p><p></p><p>[ATTACH=full]206272[/ATTACH]</p></blockquote><p></p>
[QUOTE="KOPBET, post: 3577822, member: 4153"] Well, I had a PSA w/10.5in barrel upper on my IFLR pistol, but as an afterthought I decided I wanted to be able to be able to add (and imbed) my suppressor to this gun. Unfortunately, the ID of the PSA handguard is only about 1.3 in. The suppressor OD is about 1.5 in., so no bueno. So I bought a Griffin Armament 12.5 in free float handguard with a 1.7 in ID to replace the original PSA handguard (unknown mfr). The proprietary barrel nut on the PSA upper was obviously installed by King Kong and quite difficult to get off. I didn't have a 1-1/8 crows foot wrench, if I had maybe it would have been easier, but as it was I could lift my bench off the floor and twist it from side to side with the albeit insufficient torque was applying. To make a long story short, I finally was able to remove the original barrel nut and replace it with the nut included with the new handguard, get it torqued (required about 50 lb/ft to get the gas tube channel alligned), and the new handguard put on. All was not lost with the PSA barrel nut and handguard though, I put them on another Stag Arms AR that had a fixed handguard with an A2 FSB. [ATTACH=full]206265[/ATTACH] [ATTACH=full]206264[/ATTACH] Original handguard was this one [ATTACH=full]206267[/ATTACH] Disassembled Stag Arms rifle before adding PSA free float handguard. [ATTACH=full]206269[/ATTACH] Put back together along side the 17 Design IFLR. Still need to get a MI A2 front sight but that's another $90 or so, I'm in no hurry! [ATTACH=full]206272[/ATTACH] [/QUOTE]
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