DO NOT BUY IT!!!

DO NOT BUY! Sorry for using all capital words, but there’s how terrible it has. I bought two of them, ones 15” and ones 10”. They are very hard to locking tightly, what it means? The two locking pins( bottom postion near by the barrel nut, and that only it has)just can’t work well, I locked them in way, and tried to test how tight it’s, it looses and not stable. When I hold it a little bit over-strength, the handguard will be twisted and loose it’s postion, goes forward. Damn, price defines the quality, these words would never go wrong.